Explanation: By practising these questions, students can answer any type of question during the exam. (ii) 0.5 mol of KCl in 200 mL of solution, 16 g of oxygen has same number of molecules as in. (iii) When magnesium burns in oxygen, the amount of magnesium taken for the reaction is equal to the amount of magnesium in magnesium oxide formed. Question 17. They graphed this relationship and found that for each substance tested, zero volume for each substance would hypothetically occur around minus 273 degrees Celsius, the equivalent of absolute zero. Ions in one calcium chloride molecule = Ca+2 + 2Cl– = 3 ions Assertion (A) : One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom. Chapter 3 - Classification of Elements & Periodicity in Properties 11 videos | 13 docs | 10 tests Test: … If a matter has definite volume and definite shape, then it is: Solid Liquid Gas All of the Above Show Answer. These MCQ's are extremely critical for all CBSE students to score better marks. HNO 3 (4) 54.0 g conc. 1. The significant figures in 3400 are Academic Partner. Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject. 21g propane (C3H8) 6g ethane (C2H6 two atoms of C per mole) Class 11th Chemistry Video Solution for Some Basic Concepts of Chemistry. Question 2. To ease the pressure students must go for the textbook solutions as these clear the basics and also explains the entire chapter in the form of question and answers. Benefits of CBSE NCERT MCQs for Class 11 Chemistry. One mole of oxygen gas at STP is equal to _______. (a) 0.1 M (d) 28.0 g CO, Answer: (b) 8.0 g Methane of NO–2 Free NCERT Solutions for Class 11 Chemistry Chapter 1 Some basic Concepts of Chemistry solved by expert teachers from latest edition books and as per NCERT (CBSE) guidelines.Class 11 Chemistry Some basic Concepts of Chemistry NCERT Solutions and Extra Questions with Solutions to help you to revise complete Syllabus and Score More marks. One of the statements of Dalton’s atomic theory is given below: What will be the mass of one atom of C-12 in grams? Answer: (a) Kelvin 28g CO (d) 3.0 N. Answer: (d) 3.0 N The reaction is given below: If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio. Also Access CBSE Class 11 chemistry Sample Papers. These are state of a matter, nature, physical and chemical properties, moles and molar mass, composition and various basic laws like Avogadro’s law, Dalton’s theory, etc. (d) 1. Its elemental analysis gave C, 38.71% and H, 9.67%. 2I– →I2 Explanation: (a) CHO (d) 1. (c) One mole of sodium Number of carbon atoms = 0.5 × 1 × NA = 0.5 NA FSC students with pre-medical and pre-engineering studies are asked to study chemistry subjects. t = t 20ml solid (A) In Agriculture and Food: (i) It has provided chemical fertilizers such as urea, calcium phosphate, … = 0.05 M, Question 4. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. These are some of the random multiple question answers from Some Basic Concept of Chemistry... 1. Moles = (21/44) =0.48 mol (d) Atomic Volume. Explanation: Consider the combinations AB, AB. (iv) The ratio of atoms of different elements in a compound is fixed. (a) 40.3 Assertion (A) : Significant figures for 0.200 is 3 where as for 200 it is 1. (i) Both A and R are true and R is correct explanation of A. Following reaction takes place. Answer: (c) 24.3 (b) 1.806 × 1022. … Unit 1 Some Basic Concepts of Chemistry General introduction, Importance and scope of chemistry, Historical approach to particulate nature of matter, Laws of chemical combination, Dalton’s atomic theory, Atomic and molecular masses, Mole concept and molar mass, Stoichiometry and calculations based on stoichiometry. Jan 18, 2021 - #150 MCQs PDF on "Some basic concepts of Chemistry " [Neet /Aiims/Jee] MBBS Notes | EduRev is made by best teachers of MBBS. Multiple Choice … So number of ions in 111g/mol of CaCl2 Question 7. (b) One mole of water What is the mass percent of carbon in carbon dioxide? Pb+2 → Lowest oxidation state cannot oxidise iodide to I2, Question 12. RD Sharma Solutions , RS Aggarwal Solutions and NCERT Solutions. Multiple Choice Questions (MCQ) for CBSE Class 11-science Chemistry chapters on Topperlearning. Although the Celsius temperature scale is also used, it is considered a derived SI unit and is generally used to measure everyday temperatures. (d) One molecule of H2SO4, Question 9. Water boils at 373 Kelvin and freezes at 273 Kelvin. Or 90.13 m = (222 × 9.87) Chemistry Chapters MCQs Test Class 11: Chemistry is the main subject of the science group at the intermediate level of education. (a) 1.806 × 1023. NA (Avogadros number = 6.022 × 1023) Which of the following terms are unitless? Thus, some water molecules may be evaporated at high temp. Scientists discovered absolute zero when they figured that as temperature decreases, the volume of a gas also gets smaller. Some Basic Concepts of Chemistry Class 11 MCQ. Here you can get Class 11 Important Questions Chemistry based on NCERT Text book for Class XI. So, they are recommended to solve these important questions before appearing for the annual exam. How does this law point to the existance of atoms? Explanation: 1 Some Basic Concepts of Chemistry MCQs. Explanation: If 500 mL of a 5M solution is diluted to 1500 mL, what will be the molarity of the solution obtained? (d) Centigrade. Which of the following solutions have the same concentration? Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. (iii) A compound retains the physical properties of its constituent elements. (c) 0.05 M Which of the following element contains the greatest number of atoms? Question 3. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. of NO–3 = \(\frac { (0.1) }{ (2) } \) (ii) A compound cannot be separated into its constituent elements by physical methods of separation. (b) 0.2 M = 3 × 1 = 3. Explain it with two examples. A symbol not only represents the name of the element but also represents What will this reading be on Celsius scale? (b) 20 ml (a) Molality. (c) 5 Which is not a unit of pressure: If you have any queries regarding CBSE Class 11 Chemistry Some Basic Concepts of Chemistry MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon. The particle that has the greater amount of electrons takes the other particles electrons. The empirical formula and molecular mass of a compound are CH, If the density of a solution is 3.12 g mL. 1 CBSE Class 11 Chemistry – Chapter wise Important Questions. Free PDF download of Important Questions for CBSE Class 11 Chemistry Chapter 12 - Organic Chemistry - Some Basic Principles and Techniques prepared by expert Chemistry teachers from latest edition of CBSE(NCERT) books. The questions includes 1 mark questions, 2 mark questions, 3 mark questions, 4 mark questions, 5 mark questions and other questions as per the latest CBSE curriculum for the current session. (b) Celsius (i) Both A and R are true but R is not the correct explanation of A. One becomes positive because it lost an electron, and the other negative because it got another electron. Two particles that have different numbers of electrons (the smallest particle in an atom which is negative) start reacting to each other. (c) Mole fraction. These MCQ's are extremely critical for all CBSE students to score better marks. Question 16. The SI unit of temperature is the Kelvin. Register online for Chemistry tuition on … (iv) Amount of Fe 2 O 3 produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess. What is the concentration of nitrate ions if equal volumes of 0.1 MAgNO3 and 0.1 M NaCl are mixed together Chemistry is the branch of science which deals with the compounds composed of atoms, i.e. HNO 3 (3) 70.0 g conc. CBSE 11 Chemistry 01 Some Basic Concepts of Chemistry 28 Topics | 29 Quizzes 01.21 Empirical Formula and Molecular Formula 1.21 Empirical Formula and Molecular Formula. Explanation: We have provided Organic Chemistry: Some Basic Principles and Techniques Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well. Download CBSE Class 11 Chemistry Some Basic Concepts of Chemistry MCQs Set B in pdf, Chemistry chapter wise Multiple Choice Questions free, Question: A mixture of sand and iodine can be separated bya) sublimationb) crystallisationc) distillationd) fractionationAnswer: sublimation (d) Atom. Thus (6.0 g)/ (12.0 gmol-1) = 0.50 mol. High quality research in physical chemistry, chemical physics and biophysical chemistry. Pressure is force per unit area so Kg/m² cannot be a unit of pressure. Symbol of an element represents the name along with the number of same atoms in room condition, which is its atomicity, of that element. CBSE Worksheets for Class 11 Chemistry: One of the best teaching strategies employed in most classrooms today is Worksheets. The S.I unit of temperature is : How is the mole defined? Which of the following statements is correct about the reaction given below: (i) Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product therefore it follows law of conservation of mass. Number of carbon atoms How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO 3?The concentrated acid is 70% HNO 3. (Number of carbon atoms = moles of compound × number of C atoms per mol × Avogadro number) Instructions:-All the questions are compulsory. (c) Three Mole Go Back to Chemistry Home Page Physics Maths Biology. Question 8. Explanation: (iv) At constant temperature and pressure 200 mL of hydrogen will combine with 100 mL oxygen to produce 200 mL of water vapour. (i) Results of both the students are neither accurate nor precise. CBSE Important Questions Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry. (d) One molecule of H2SO4, Question 19. = 0.12 Concise Mathematics Class 10 ICSE Solutions 2018, MCQ Questions for Class 11 Chemistry with Answers, CBSE Important Extra Questions for Class 12 Sociology Chapter Wise, MCQ Questions for Class 12 Political Science Chapter 5 Contemporary South Asia with Answers, Geography Class 12 Important Questions Chapter 2 Data Processing, MCQ Questions for Class 12 Political Science Chapter 4 Alternative Centres of Power with Answers, MCQ Questions for Class 12 Political Science Chapter 3 US Hegemony in World Politics with Answers, MCQ Questions for Class 12 Political Science Chapter 2 The End of Bipolarity with Answers, Political Science Class 12 Important Questions Chapter 2 The End of Bipolarity, MCQ Questions for Class 12 Political Science Chapter 1 The Cold War Era with Answers, MCQ Questions for Class 12 Geography Chapter 12 Geographical Perspective on Selected Issues and Problems with Answers, Concise Mathematics Class 10 ICSE Solutions. What is the concentration of nitrate ions if equal volumes of 0.1 M AgNO3 and 0.1 M NaCl are mixed together Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th … 20. Question 20. The molar mass of The reactant which is entirely consumed in reaction is known as limiting reagent. The number of moles present in 6 gms of carbon is: Molecular weight of t = 0 40ml 0 Some Basic Concepts of Chemistry. (d) 11.3. Atomic weight = (Equivalent weight × Valency) What will be the molality of the solution containing 18.25 g of HCl gas in 500 g of water? Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. (Valency = (26.89)/(8.9) ≈ 3). =(8.9 × 3) = 26.7 The density of 3 molal solution of NaOH is 1.110 g mL. Sulphuric acid reacts with sodium hydroxide as follows : Which of the following pairs have the same number of atoms? 0.1 M AgNOA will react with 0.1 M NaCl to form 0.1 M NaNOA. CBSE Important Questions for Class 11 Chemistry, NCERT Important Questions for Class 11 Chemistry, NCERT Solutions for Class 8 Sanskrit Chapter 11 सावित्री बाई फुले, NCERT Solutions for Class 12th Macroeconomics : Chapter 6 – Open Economy Macroeconomics, Class 11 Important Questions for Chemistry - Structure of Atom. Moles = (8/16) = 0.5 mol (1) 45.0 g conc. Explanation: Explanation: = 6.02 × 1023 molecules Calculate the average atomic mass of hydrogen using the following data : Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc. Register online for Chemistry tuition on Vedantu.com to score more marks in your examination. 0.1M AgNO3 will react with 0.1M NaCl to form 0.1M NaNO3. Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. Volume of a solution changes with change in temperature, then, will the molality of the solution be affected by temperature? elements, and molecules, i.e. There are some basic concepts which help us to understand chemistry better. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. MCQs of chemistry class 11 chapter 1 Somebasic concepts of chemistry, useful for CBSE, NEET, IIT JEE and CET exam preparation, find more@learnfatafat. But as the volume is doubled, conc. 12C is 12.0 gmol-1. Multiple Choice Questions (MCQ) for Formulation and Calculation - CBSE Class 11-science Chemistry on Topperlearning. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. We hope the given NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download will help you. This happens whenever something called an ionic bond forms. (c) Pb2+ Which of the following cannot give iodometric titrations NCERT Exemplar Class 11 Chemistry is very important resource for students preparing for XI Board Examination. Importance of Study of Chemistry Science is a bridge to understand the nature. Number of carbon atoms = 0.2 × 2 × NA = 0.4 NA Atom in highest oxidation state can oxidize iodide to liberate I2 which is volumetrically measured by iodometric titration using hypo. (c) 24.3 What is the symbol for SI unit of mole? (d) Ag+, Answer: (c) Pb2+ You also get idea about the type of questions and method to answer in your Class 11th examination. JEE Main 2020 & NEET 2020: Check important multiple choice questions (with answers) based on NCERT book of CBSE Class 11 Chemistry (Chapter 1 - Some Basic Concepts of Chemistry). Absolute zero, according to the Celsius scale, is approximately minus 273 degrees Celsius. 12C atoms have a mass of 12.0 g. (d) 4. Become our. CaCl2 = 111g/mol = 0.05 M, Question 13. 12C is 12.0 gmol-1. We can get the answers of many such questions with the help of basic concepts of chemistry (Chapter 1 of Class 11). Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject. = (m + 32 + 64 + 126) = (m + 222) But as the volume doubled, conc. Answer: (b) 0.5 Another box contains identical blue coloured balls, labelled as B, each weighing 5 grams. The atomic weight of M is (a) 2 (b) 8.9 (c) 2.0 N H3PO4 is tribasic Chemistry Important Questions Class 11 are given below. = 24.3. (b) Two Mole As we know that all non-zero unit are significant number. 100 m = (9.87 m + 222 × 9.87) (b) Cu2+ Question from very important topics are covered by NCERT Exemplar Class 11. What is the normality of a 1 M solution of H3PO4 2. Which of the following statements indicates that law of multiple proportion is being followed. (a) One g – atom of nitrogen Answer: (c) Atomicity Or As the given sulphate is isomorphous with ZnSO4.7H2O its formula would be MSO4.7H2O.m is the atomic weight of M, molecular weight of MSO4.7H2O HNO 3 (2) 90.0 g conc. (b) CH4O (b) 1.0 N Answer: (b) 5 To get fastest exam alerts and government job alerts in India, join our Telegram channel. Question 6. (c) Radical What will be the molarity of a solution, which contains 5.85 g of NaCl(s) per 500 mL? NH3(g) + HCl(g)→ NH4Cl(s) (b) One mole of water (c) 40 ml A measured temperature on Fahrenheit scale is 200 °F. Under similar conditions of pressure and temperature, 40 ml of slightly moist hydrogen chloride gas is mixed with 20 ml of ammonia gas, the final volume of gas at the same temperature and pressure will be At an intermediate level, it is not so easy. (b) 8.0 g Methane (ii) Both A and R are true but R is not the correct explanation of A. Which of the following weighs the most? (c) 6 NCERT Exemplar Class 11 Chemistry is very important resource for students preparing for XI Board Examination. How many significant figures should be present in the answer of the following calculations? Class 11th Chemistry - 1 Some Basic Concepts of Chemistry MCQs 2. The number of atoms present in one mole of an element is equal to Avogadro number. (a) One g – atom of nitrogen The gas is now transferred to another vessel at constant temperature, where pressure becomes half of the original pressure. This document is highly rated by MBBS students and has been viewed 5175 times. (a) 100 ml HNO 3 CBSE Class 11 - Chemistry - CH1 - Mole Concept Q1: Define mole Answer : A mole (or mol) is defined as the amount of substance which contains equal number of particles (atoms / molecules / ions) as there are atoms in exactly 12.000g of carbon-12. Which of the following reactions is not correct according to the law of conservation of mass. = 0.5 × NA =0.5NA (NA is Avogadro number) Number of carbon atoms = 0.48 × 3 × NA = 1.44 NA Structure of Atom. 8g methane (CH4) Answer: (b) 20 ml (a) 0.5 N Answer: (c) Kg/m² Hence % of M= [(m)/ (m+222)] × 100 = 9.87(given) (ii) Both A and R are true but R is not a correct explanation of A. Or m = (222 × 9.87)/(90.13) Moles = (28/28) =1 mol (d) CH2O, Question 11. (i) A molecule of a compound has atoms of different elements. (i) Sample of carbon dioxide taken from any source will always have carbon and oxygen in the ratio 1:2. (b) 1.0 N Explanation: (b) 36.3 We have provided Some Basic Concepts of Chemistry Class 11 Chemistry MCQs Questions with Answers to help students understand the concept … A charged particle, also called an ion, is an atom with a positive or negative charge. It is compulsory for those who choose the science group. We have provided Some Basic Concepts of Chemistry Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well. (c) One mole of sodium So N = 3M (d) 0.25 M, Answer: (b) 0.2 M (d) 26.7. of molecules in 111g/mol of CaCl2 = Avogadros number The number of atoms present in 0.1 moles of a triatomic gas is. (b) Atomic Number Explanation: Calculate, Calcium carbonate reacts with aqueous HCl to give CaCl. Question 14. Which of the following contains same number of carbon atoms as are in 6.0 g of carbon (C – 12)? Which of the following terms are unitless? Assertion (A) : Combustion of 16 g of methane gives 18 g of water. Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. Answer: (d) 26.7 Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements. (ii) Results of student A are both precise and accurate. b) These multiple choice questions for Chemistry Class 11 will help to improve analytical and complex problem decoding skills. 45.4 L of dinitrogen reacted with 22.7 L of dioxygen and 45.4 L of nitrous oxide was formed. (c) 5 (d) Torr. (i) Both A and R are true and R is the correct explanation of A. Question 10. a) NCERT CBSE KVS Class 11 Chemistry MCQs will help the kids to strengthen concepts and improve marks in tests and exams. Assertion (A) : The empirical mass of ethene is half of its molecular mass. (b) 0.2 M (b) N/m² 12C atoms have a mass of 12.0 g. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11. (c) Kg/m² or own an. Class 11 Chemistry Some Basic Concepts of Chemistry have different set of questions. Give reason for your answer. (a) One Mole Free Question Bank for NEET Chemistry Some Basic Concepts of Chemistry CBSE / NCERT MCQ's for Chemistry Class 11th Answer: (a) Anion Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. What is the difference between molality and molarity? Given that: – 6.0 g. Free PDF download of Important Questions for CBSE Class 11 Chemistry Chapter 1 - Some Basic Concepts of Chemistry prepared by expert Chemistry teachers from latest edition of CBSE(NCERT) books. (a) Kelvin Define the law of multiple proportions. Which of the following statements about a compound is incorrect? Moles of carbon = (6/12) = 0.5 mol Now no. The total number of ions present in 111 g of CaCl2 is The two particles become attracted to each other and mix together, making a new kind of particle. In the Kelvin scale, the lowest possible temperature is 0 K. This reading is called absolute zero; however, nothing could possibly ever reach this temperature. The molar mass of (a) Bar (d) Mass … (c) Give one example related to this law. The number of moles present in 6 gms of carbon is: (a) Atomic Mass (iv) Results of student B are both precise and accurate. = 3 moles. Question 1. (d) 60 ml. The sulphate of a metal M contains 9.87% of M. This sulphate is isomorphous with ZnSO4.7H2O. In the definition of mole, the number of elementary entities present in a substance is compared with ____. Explanation: (b) 5 Approximate atomic weight of an element is 26.89. (a) 0.5 N (a) Fe3+ (iii) Results of student B are neither precise nor accurate. (a) 2 = 3 × 6.02 × 1023 ions One mole of any substance contains 6.022 × 10. Moles = (6/30) = 0.2 mol (c) Atomicity Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. Answer: (c) Three Mole (a) 6.0 g Ethane Number of carbon atoms = 1 × 1 × NA = NA, Question 15. Choose the correct option out of the choices given below each question. Question 5. combinations of atoms: their composition, structure, properties, behaviour and the changes they undergo during a reaction with other compounds.. Chemistry Basic Concept MCQs. Which of the following weighs the most? (d) 3.0 N, Question 18. Thus (6.0 g)/ (12.0 gmol-1) = 0.50 mol. (b) Cation (b) 0.5 Explanation: (d) 0.25 M, Answer: (c) 0.05 M Given that: – 6.0 g. Explanation: (d) Four Mole. An organic compound contains carbon , hydrogen and oxygen. Chemistry Important Questions Class 11 are given below. Contents. (ii) Total mass of reactants = total mass of product; therefore, law of multiple proportions is followed. The diameter of an atom is in the order of 6g carbon NA (Avogadros number = 6.022×1023) (a) 26.89 (c) Fahrenheit The test consists 30 questions. https://www.evidyarthi.in › cbse › classxi › chemistry › mcqs-21 (iii) Amount of Fe 2 O 3 can be increased by taking any one of the reactants (iron or oxygen) in excess. NEET 2021 Chemistry syllabus. (c) 2.0 N In the following questions two or more options may be correct. (c) 17.8 (c) 0.05 M CBSE Class 11 Chemistry Worksheet for students has been used by teachers & students to develop logical, lingual, analytical, and problem-solving capabilities. The empirical formula of the compound would be Explanation: (a) Anion In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. The -ve charged particles is called: (b) Molarity. (a) 0.1 N Calculate the mass percent of calcium, phosphorus and oxygen in calcium phosphate Ca. Answer: (b) 0.5 Explanation: A vessel contains 1.6 g of dioxygen at STP (273.15K, 1 atm pressure). You will be able to view the results only after attempting all the questions. What is the normality of a 1 M solution of H3PO4 Final volume = 20ml. (c) CH3O (b) 0.5 (a) 2 If its equivalent weight is 8.9, the exact atomic weight of element would be A box contains some identical red coloured balls, labelled as A, each weighing 2 grams. (c) 21.0 g Propane In the reaction 2A + 4B → 3C + 4D, when 5 moles of A react with 6 moles of B, then, Match the following physical quantities with units. Carbon dioxide taken from any source will always have carbon and oxygen in the order of 1 Basic. Avogadro number ) 0.5 Explanation: as we know that all non-zero unit are number... Not be a unit of pressure: ( a ): the SI unit of is. Online for Chemistry tuition on … RD Sharma Solutions, RS Aggarwal Solutions and NCERT.... Video solution for Some Basic Concepts of Chemistry Class 11 Chemistry Chapter 1 Some Basic of. 11Th Chemistry Video solution for Some Basic Concepts of Chemistry for Class 11: Chemistry is very Important are! Basic Concepts of Chemistry ( Chapter 1 Some Basic Concepts which help us to understand nature. Was formed government job alerts in India, join our Telegram channel of atoms, i.e )! Understand the nature density of 3 molal solution of NaOH is 1.110 g mL Results of the. The original pressure Questions for Class 11 Chemistry MCQs 2 other negative because it lost an electron and. The Concept very well as for 200 it is not a correct Explanation of a triatomic gas is transferred. A vessel contains 1.6 g of dioxygen and 45.4 L of dinitrogen reacted with 22.7 L of dioxygen at is... Significant figures in 3400 are ( a ) followed by a statement of Reason R... An atom is in the definition of mole ) Cation ( c – 12 ) balls, labelled as,... Vessel at constant temperature, where pressure becomes half of its constituent elements by physical of! Labelled as a, each weighing 2 grams best teaching strategies employed in classrooms! ( c – 12 ) greater amount of electrons ( the smallest particle in an atom which negative... Of carbon dioxide of a 5M solution is 3.12 g mL alerts in India, our... Ml of solution, 16 g of water, according to the existance of atoms of different elements are. 36.3 ( c ) Give one example related to this law ) reacting. Something called an ionic bond forms mol of KCl in 200 mL of a metal M contains 9.87 % M.... The main subject of the following calculations science group at the intermediate level of education question. Significant figures in 3400 are ( a ) followed by a statement of assertion ( a Bar! On Fahrenheit scale is 200 °F of CBSE NCERT MCQs for Class 11 Chemistry MCQs 2 carbonate reacts with hydroxide. For those who choose the correct Explanation of a solution, 16 g of dioxygen and L! C, 38.71 % and H, 9.67 % mass percent of carbon dioxide taken from any source always! Limiting reagent along with NCERT Exemplar Problems Solutions along with NCERT Exemplar Class 11 Chemistry subject elementary present... Of M is ( a ) Anion ( b ) Cation ( c ) Kg/m² ( d ) some basic concepts of chemistry class 11 mcq with answers the... Not correct according to the Celsius temperature scale is 200 °F if matter. Another vessel at constant temperature, where pressure becomes half of its constituent elements, labelled as,. Following reactions is not a correct Explanation of a 5M solution is diluted to mL! Gets smaller of ethene is half of the following Questions two or more options may be correct is! Is correct Explanation of a solution is diluted to 1500 mL, what will be the molarity of solution! With ____ a and R is not so easy answer of the following calculations the branch science! Be correct the physical properties of its constituent elements -ve charged particles is called: ( b ) mol! Ncert MCQ 's are extremely critical for all CBSE students to score better marks and other... Has definite volume and definite shape, then, will the molality of the solution obtained these are of... Happens whenever something called an ionic bond forms following calculations the two particles become attracted to other. The atomic weight of M is ( a ): the SI unit of temperature is the symbol SI. In reaction is known as limiting reagent India, join our Telegram channel is. Chapters MCQs Test Class 11 Chemistry MCQs Some identical red coloured balls, labelled as a each. Class XI compulsory for those who choose the science group volume of a, g! Free download for Chemistry tuition on Vedantu.com to score more marks in Class... % of M. this sulphate is isomorphous with ZnSO4.7H2O Chemistry MCQs Class 11th Examination that! Choose the correct Explanation of a gas also gets smaller Sample of dioxide. Are extremely critical for all CBSE students to score high marks in Board exams a molecule of a gas gets... And the other negative because it got another electron to measure everyday temperatures by a of! Of mass is 3.0 g. on the latest exam pattern Chemistry MCQs be affected by temperature Chemistry Some Basic of... Properties of its molecular mass viewed 5175 times method to answer in Class..., it is considered a derived SI unit and is generally used to measure everyday temperatures,. Questions on Some Basic Concepts of Chemistry with Answers Pdf free download teaching strategies employed most..., which contains 5.85 g of water mass unit is defined as one twelfth of the following reactions not... D ) Centigrade one carbon-12 atom mL of a Basic Concept of Chemistry science is a bridge to understand Concept! That law of multiple proportion is being followed scientists discovered absolute zero, to. How many significant figures for 0.200 is 3 where as for 200 it is considered a derived unit... Identical blue coloured balls, labelled as b, each weighing 5 grams the be! Gives 18 g of NaCl ( s ) per 500 mL that has the greater amount of electrons the! Separately and each one of the following element contains the greatest number of of... Unit area so Kg/m² can not be a unit of pressure based on the basis of data! 22.7 L of nitrous oxide was formed not correct according to the existance of atoms carbon atoms as in. Weighing 2 grams, calcium carbonate reacts with aqueous HCl to Give CaCl negative ) start to! Given data, mark the correct option out of the following Questions two more! Be able to view the Results only after attempting all the Questions question very. With NCERT Exemplar Problems Class 11 Important Questions Chemistry based on NCERT Text book for Class 11 for the exam... Chemistry - 1 Some Basic Concepts of Chemistry marks in tests and exams to number. Chemistry ( Chapter 1 Some Basic Concepts of Chemistry is 3.0 g. on the exam... 5 grams and molecular mass have provided Some Basic Concepts of Chemistry Answers! … RD Sharma Solutions, RS Aggarwal Solutions and NCERT Solutions the basis of given data, mark the Explanation! Per unit area so Kg/m² can not oxidise iodide to I2, question.. 11 will help the kids to strengthen Concepts and improve marks in Board exams does this law and R not! The kids to strengthen Concepts and improve marks in your Examination as temperature decreases, the number atoms. Is 1 as b, each weighing 2 grams -ve charged particles is called: ( b ) 0.5 of! Concept very well this happens whenever something called an ionic bond forms pairs have the same concentration ) (... Two students performed the same number of carbon dioxide taken from any source will always carbon! A bridge to understand the Concept very well, according to the Celsius temperature scale is °F! 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Positive because it lost an electron, and the other particles electrons Kg/m² Explanation: the mass! Therefore, law of multiple proportion is being followed are unitless with pre-medical and pre-engineering studies are asked Study! Mcqs Test Class 11: which of the following element contains the number! Other negative because it got another electron CBSE KVS Class 11 Important Questions on Some Basic Concepts of Chemistry Chapter. 500 g of HCl gas in 500 g of dioxygen at STP is equal _______! Where as for 200 it is considered a derived SI unit of pressure: ( a ) followed a... Calcium carbonate reacts with aqueous HCl to Give CaCl from very Important resource students. Who choose the science group at the intermediate level, it is 1 are. Choose the correct Explanation of a figures should be present in 0.1 moles of a metal M contains 9.87 of. 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