Question 7. (i) Both A and R are true and R is correct explanation of A. A charged particle, also called an ion, is an atom with a positive or negative charge. NCERT Exemplar Class 11 Chemistry is very important resource for students preparing for XI Board Examination. We can get the answers of many such questions with the help of basic concepts of chemistry (Chapter 1 of Class 11). (a) One g – atom of nitrogen But as the volume is doubled, conc. Chemistry Important Questions Class 11 are given below. The empirical formula of the compound would be (c) 21.0 g Propane CBSE Class 11 Chemistry Worksheet for students has been used by teachers & students to develop logical, lingual, analytical, and problem-solving capabilities. (a) Bar HNO 3 (3) 70.0 g conc. (b) One mole of water 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? (b) N/m² 21g propane (C3H8) 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. One mole of any substance contains 6.022 × 10. (b) One mole of water (ii) Total mass of reactants = total mass of product; therefore, law of multiple proportions is followed. Given that: – 6.0 g. Some Basic Concepts of Chemistry Class 11 MCQ. Answer: (c) Three Mole We have provided Some Basic Concepts of Chemistry Class 11 Chemistry MCQs Questions with Answers to help students understand the concept … Question 5. Choose the correct option out of the choices given below each question. (c) Mole fraction. Which of the following weighs the most? Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. How many significant figures should be present in the answer of the following calculations? Chapter 3 - Classification of Elements & Periodicity in Properties 11 videos | 13 docs | 10 tests Test: … (c) Pb2+ Become our. HNO 3 Explanation: Free Question Bank for NEET Chemistry Some Basic Concepts of Chemistry Define the law of multiple proportions. (d) Atom. Answer: (c) 24.3 Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. 100 m = (9.87 m + 222 × 9.87) 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. The molar mass of Water boils at 373 Kelvin and freezes at 273 Kelvin. High quality research in physical chemistry, chemical physics and biophysical chemistry. (b) 0.5 20. (b) 0.2 M (d) 26.7. Explanation: (c) 0.05 M (c) 2.0 N Explanation: Explanation: Answer: (b) 20 ml Class 11 Chemistry Some Basic Concepts of Chemistry have different set of questions. Calculate, Calcium carbonate reacts with aqueous HCl to give CaCl. What is the symbol for SI unit of mole? CaCl2 = 111g/mol HNO 3 (4) 54.0 g conc. Explanation: One becomes positive because it lost an electron, and the other negative because it got another electron. HNO 3 (2) 90.0 g conc. You will be able to view the results only after attempting all the questions. of NO–3 = \(\frac { (0.1) }{ (2) } \) MCQs of chemistry class 11 chapter 1 Somebasic concepts of chemistry, useful for CBSE, NEET, IIT JEE and CET exam preparation, find more@learnfatafat. (c) CH3O Given that: – 6.0 g. (c) Give one example related to this law. (a) 26.89 NEET 2021 Chemistry syllabus. A symbol not only represents the name of the element but also represents (d) Atomic Volume. (b) 1.0 N RD Sharma Solutions , RS Aggarwal Solutions and NCERT Solutions. Which of the following weighs the most? Structure of Atom. Answer: (b) 0.5 8g methane (CH4) Explanation: (a) 0.1 M As we know that all non-zero unit are significant number. (a) One g – atom of nitrogen How does this law point to the existance of atoms? Multiple Choice Questions (MCQ) for Formulation and Calculation - CBSE Class 11-science Chemistry on Topperlearning. Thus (6.0 g)/ (12.0 gmol-1) = 0.50 mol. Question 1. Explanation: Moles of carbon = (6/12) = 0.5 mol (b) Molarity. What is the mass percent of carbon in carbon dioxide? Pressure is force per unit area so Kg/m² cannot be a unit of pressure. Calculate the mass percent of calcium, phosphorus and oxygen in calcium phosphate Ca. (b) Cu2+ Answer: (a) Kelvin (b) 8.9 (c) Three Mole But as the volume doubled, conc. Class 11th Chemistry Video Solution for Some Basic Concepts of Chemistry. 12C atoms have a mass of 12.0 g. If a matter has definite volume and definite shape, then it is: Solid Liquid Gas All of the Above Show Answer. 0.1M AgNO3 will react with 0.1M NaCl to form 0.1M NaNO3. … A box contains some identical red coloured balls, labelled as A, each weighing 2 grams. = 3 moles. 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. Atom in highest oxidation state can oxidize iodide to liberate I2 which is volumetrically measured by iodometric titration using hypo. Or 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. Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. Assertion (A) : Combustion of 16 g of methane gives 18 g of water. (c) 5 (b) CH4O Assertion (A) : Significant figures for 0.200 is 3 where as for 200 it is 1. (ii) Both A and R are true but R is not a correct explanation of A. (d) 3.0 N, Question 18. Give reason for your answer. Explanation: = 0.12 Number of carbon atoms = 1 × 1 × NA = NA, Question 15. Sulphuric acid reacts with sodium hydroxide as follows : Which of the following pairs have the same number of atoms? 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. H3PO4 is tribasic So N = 3M Although the Celsius temperature scale is also used, it is considered a derived SI unit and is generally used to measure everyday temperatures. combinations of atoms: their composition, structure, properties, behaviour and the changes they undergo during a reaction with other compounds.. Chemistry Basic Concept MCQs. (a) 0.1 N This happens whenever something called an ionic bond forms. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. Another box contains identical blue coloured balls, labelled as B, each weighing 5 grams. The gas is now transferred to another vessel at constant temperature, where pressure becomes half of the original pressure. (b) 1.806 × 1022. 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. Thus, some water molecules may be evaporated at high temp. Its elemental analysis gave C, 38.71% and H, 9.67%. (ii) 0.5 mol of KCl in 200 mL of solution, 16 g of oxygen has same number of molecules as in. The empirical formula and molecular mass of a compound are CH, If the density of a solution is 3.12 g mL. (iii) A compound retains the physical properties of its constituent elements. Some Basic Concepts of Chemistry. (c) 17.8 Absolute zero, according to the Celsius scale, is approximately minus 273 degrees Celsius. Multiple Choice … 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 Molecular weight of b) These multiple choice questions for Chemistry Class 11 will help to improve analytical and complex problem decoding skills. (ii) Both A and R are true but R is not the correct explanation of A. Number of carbon atoms = 0.5 × 1 × NA = 0.5 NA (i) Both A and R are true but R is not the correct explanation of A. Which of the following statements indicates that law of multiple proportion is being followed. (d) 4. Which of the following terms are unitless? (a) 1.806 × 1023. A measured temperature on Fahrenheit scale is 200 °F. Or m = (222 × 9.87)/(90.13) (c) Fahrenheit (c) 24.3 (iii) Amount of Fe 2 O 3 can be increased by taking any one of the reactants (iron or oxygen) in excess. Answer: (d) 26.7 The molar mass of Explanation: Question 16. Explanation: NA (Avogadros number = 6.022 × 1023) Chemistry is the branch of science which deals with the compounds composed of atoms, i.e. Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. What is the normality of a 1 M solution of H3PO4 (b) 8.0 g Methane What is the concentration of nitrate ions if equal volumes of 0.1 MAgNO3 and 0.1 M NaCl are mixed together Two particles that have different numbers of electrons (the smallest particle in an atom which is negative) start reacting to each other. (a) 40.3 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. (Valency = (26.89)/(8.9) ≈ 3). By practising these questions, students can answer any type of question during the exam. Thus (6.0 g)/ (12.0 gmol-1) = 0.50 mol. Final volume = 20ml. Answer: (c) Atomicity 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). (c) Kg/m² 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. 12C atoms have a mass of 12.0 g. Go Back to Chemistry Home Page Physics Maths Biology. (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. = (m + 32 + 64 + 126) = (m + 222) 1. CBSE / NCERT MCQ's for Chemistry Class 11th (iii) Results of student B are neither precise nor accurate. In the definition of mole, the number of elementary entities present in a substance is compared with ____. Instructions:-All the questions are compulsory. (b) Two Mole Importance of Study of Chemistry Science is a bridge to understand the nature. (d) Torr. Also Access CBSE Class 11 chemistry Sample Papers. Now no. The significant figures in 3400 are 2I– →I2 6g carbon 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. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11. 2. (i) Results of both the students are neither accurate nor precise. (a) Anion (a) Kelvin (a) 2 Or 90.13 m = (222 × 9.87) (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. (b) 20 ml (a) 0.5 N (i) A molecule of a compound has atoms of different elements. The number of moles present in 6 gms of carbon is: (iv) At constant temperature and pressure 200 mL of hydrogen will combine with 100 mL oxygen to produce 200 mL of water vapour. (d) 3.0 N. Answer: (d) 3.0 N The particle that has the greater amount of electrons takes the other particles electrons. (c) 5 (d) Mass … (i) Sample of carbon dioxide taken from any source will always have carbon and oxygen in the ratio 1:2. 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. Approximate atomic weight of an element is 26.89. (d) Ag+, Answer: (c) Pb2+ Following reaction takes place. Answer: (c) Kg/m² = 6.02 × 1023 molecules of NO–2 Which of the following statements about a compound is incorrect? (A) In Agriculture and Food: (i) It has provided chemical fertilizers such as urea, calcium phosphate, … (1) 45.0 g conc. What is the normality of a 1 M solution of H3PO4 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 … It is compulsory for those who choose the science group. Which of the following solutions have the same concentration? Benefits of CBSE NCERT MCQs for Class 11 Chemistry. = 3 × 1 = 3. (a) Molality. Which of the following element contains the greatest number of atoms? Explanation: (c) Radical (c) 2.0 N Number of carbon atoms = 0.2 × 2 × NA = 0.4 NA Number of carbon atoms (ii) A compound cannot be separated into its constituent elements by physical methods of separation. The sulphate of a metal M contains 9.87% of M. This sulphate is isomorphous with ZnSO4.7H2O. Assertion (A) : The empirical mass of ethene is half of its molecular mass. (iv) Results of student B are both precise and accurate. = 0.05 M, Question 4. Register online for Chemistry tuition on Vedantu.com to score more marks in your examination. (b) Cation Answer: (b) 5 Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. = 0.5 × NA =0.5NA (NA is Avogadro number) CBSE Important Questions Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry. (b) 1.0 N Here you can get Class 11 Important Questions Chemistry based on NCERT Text book for Class XI. The number of moles present in 6 gms of carbon is: (a) 0.5 N 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. Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. t = t 20ml solid Explanation: (d) 1. Chemistry Chapters MCQs Test Class 11: Chemistry is the main subject of the science group at the intermediate level of education. The two particles become attracted to each other and mix together, making a new kind of particle. The test consists 30 questions. (d) 1. 1 CBSE Class 11 Chemistry – Chapter wise Important Questions. Question from very important topics are covered by NCERT Exemplar Class 11. Question 3. 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. = 0.05 M, Question 13. How is the mole defined? The diameter of an atom is in the order of 28g CO 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. (a) CHO = 24.3. What is the concentration of nitrate ions if equal volumes of 0.1 M AgNO3 and 0.1 M NaCl are mixed together (i) Both A and R are true and R is the correct explanation of A. (d) One molecule of H2SO4, Question 9. You also get idea about the type of questions and method to answer in your Class 11th examination. The number of atoms present in 0.1 moles of a triatomic gas is. = 3 × 6.02 × 1023 ions (b) Atomic Number So, they are recommended to solve these important questions before appearing for the annual exam. There are some basic concepts which help us to understand chemistry better. Assertion (A) : One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom. Explanation: (a) One Mole 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 So number of ions in 111g/mol of CaCl2 In the following questions two or more options may be correct. If 500 mL of a 5M solution is diluted to 1500 mL, what will be the molarity of the solution obtained? Hence % of M= [(m)/ (m+222)] × 100 = 9.87(given) (d) CH2O, Question 11. The number of atoms present in one mole of an element is equal to Avogadro number. Moles = (6/30) = 0.2 mol Answer: (a) Anion Which is not a unit of pressure: Class 11th Chemistry - 1 Some Basic Concepts of Chemistry MCQs 2. Moles = (21/44) =0.48 mol A vessel contains 1.6 g of dioxygen at STP (273.15K, 1 atm pressure). https://www.evidyarthi.in › cbse › classxi › chemistry › mcqs-21 (c) 0.05 M (d) Centigrade. (b) 0.2 M (a) 2 Question 20. Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements. What will be the molarity of a solution, which contains 5.85 g of NaCl(s) per 500 mL? Chemistry Important Questions Class 11 are given below. Academic Partner. Explanation: Consider the combinations AB, AB. elements, and molecules, i.e. What is the difference between molality and molarity? (iv) The ratio of atoms of different elements in a compound is fixed. 0.1 M AgNOA will react with 0.1 M NaCl to form 0.1 M NaNOA. 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. (b) 36.3 Question 14. This document is highly rated by MBBS students and has been viewed 5175 times. At an intermediate level, it is not so easy. 45.4 L of dinitrogen reacted with 22.7 L of dioxygen and 45.4 L of nitrous oxide was formed. Scientists discovered absolute zero when they figured that as temperature decreases, the volume of a gas also gets smaller. (ii) Results of student A are both precise and accurate. An organic compound contains carbon , hydrogen and oxygen. Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject. Number of carbon atoms = 0.48 × 3 × NA = 1.44 NA (d) 0.25 M, Answer: (c) 0.05 M (c) 6 =(8.9 × 3) = 26.7 Ions in one calcium chloride molecule = Ca+2 + 2Cl– = 3 ions The total number of ions present in 111 g of CaCl2 is Which of the following terms are unitless? These MCQ's are extremely critical for all CBSE students to score better marks. (Number of carbon atoms = moles of compound × number of C atoms per mol × Avogadro number) (a) 6.0 g Ethane (d) 28.0 g CO, Answer: (b) 8.0 g Methane Which of the following cannot give iodometric titrations (b) 0.5 To get fastest exam alerts and government job alerts in India, join our Telegram channel. One mole of oxygen gas at STP is equal to _______. 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. (d) 11.3. Question 6. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. What will be the molality of the solution containing 18.25 g of HCl gas in 500 g of water? 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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 Volume of a solution changes with change in temperature, then, will the molality of the solution be affected by temperature? or own an. Which of the following contains same number of carbon atoms as are in 6.0 g of carbon (C – 12)? (c) One mole of sodium The atomic weight of M is These are some of the random multiple question answers from Some Basic Concept of Chemistry... 1. (b) Celsius 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. Answer: (b) 0.5 We have provided Some Basic Concepts of Chemistry Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well. NH3(g) + HCl(g)→ NH4Cl(s) Question 10. Pb+2 → Lowest oxidation state cannot oxidise iodide to I2, Question 12. (a) 100 ml (c) Atomicity 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. The density of 3 molal solution of NaOH is 1.110 g mL. If its equivalent weight is 8.9, the exact atomic weight of element would be 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 (c) 40 ml Question 2. 6g ethane (C2H6 two atoms of C per mole) FSC students with pre-medical and pre-engineering studies are asked to study chemistry subjects. 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. Which of the following reactions is not correct according to the law of conservation of mass. t = 0 40ml 0 In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. The SI unit of temperature is the Kelvin. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. Explain it with two examples. What will this reading be on Celsius scale? The S.I unit of temperature is : Multiple Choice Questions (MCQ) for CBSE Class 11-science Chemistry chapters on Topperlearning. (d) Four Mole. (d) 0.25 M, Answer: (b) 0.2 M (d) One molecule of H2SO4, Question 19. Question 17. Explanation: a) NCERT CBSE KVS Class 11 Chemistry MCQs will help the kids to strengthen concepts and improve marks in tests and exams. CBSE Worksheets for Class 11 Chemistry: One of the best teaching strategies employed in most classrooms today is Worksheets. (b) 5 (a) Atomic Mass MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. Atomic weight = (Equivalent weight × Valency) Explanation: Question 8. of molecules in 111g/mol of CaCl2 = Avogadros number Moles = (28/28) =1 mol The reactant which is entirely consumed in reaction is known as limiting reagent. Contents. 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. Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject. These MCQ's are extremely critical for all CBSE students to score better marks. 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. (a) Fe3+ 1 Some Basic Concepts of Chemistry MCQs. Register online for Chemistry tuition on … (a) 2 (c) One mole of sodium NA (Avogadros number = 6.022×1023) Symbol of an element represents the name along with the number of same atoms in room condition, which is its atomicity, of that element. 12C is 12.0 gmol-1. 12C is 12.0 gmol-1. The -ve charged particles is called: NCERT Exemplar Class 11 Chemistry is very important resource for students preparing for XI Board Examination. (d) 60 ml. , 16 g of water atm pressure ) of different elements Celsius scale, is approximately minus 273 degrees.. Identical blue coloured balls, labelled as a, each weighing 5 grams the properties... To Avogadro number elementary entities present in the following reactions is not correct... To 1500 mL, what will be able to view the Results only after some basic concepts of chemistry class 11 mcq with answers all the.... Is diluted to 1500 mL, what will be able to view the Results after. Boils at 373 Kelvin and freezes at 273 Kelvin assertion ( a ): one atomic mass unit is as. Of any substance contains 6.022 × 10 mass percent of calcium, phosphorus and oxygen in the answer the! Today is Worksheets XI Board Examination 0.1 ) } { ( 0.1 }... Most classrooms today is Worksheets for Formulation and Calculation - CBSE Class 11 Chemistry the... Not correct according to the Celsius scale, is approximately minus 273 degrees Celsius, 16 g of (. Chemistry Class 11 = Total mass of 12C is 12.0 gmol-1 neither accurate nor precise ) atom is! A and R are true but R is not a correct Explanation of 5M! Element contains the greatest number of atoms here we have covered Important Questions also gets smaller options be. Now transferred to another vessel at constant temperature, where pressure becomes half of its constituent elements the! On Vedantu.com to score high marks in your Examination at STP is equal to Avogadro number (. 1.110 g mL of HCl gas in 500 g of HCl gas in 500 g of methane gives 18 of. Check the below NCERT MCQ Questions for Chemistry Class 11 Chemistry with Answers were prepared based on the latest pattern! Idea about the type of question during the exam dinitrogen reacted with 22.7 L of dioxygen at STP (,!, question 12 got another electron one of the following Solutions have the same of... Questions with the help of Basic Concepts of Chemistry Class 11 Chemistry subject carbon, hydrogen oxygen... Related to this law particles electrons STP ( 273.15K, 1 atm )! Of Class 11 Chemistry is very Important topics are covered by NCERT Exemplar Class 11 ) has viewed... 0.1 ) } \ ) = 0.05 M, question 12 ) Results of the! Chemistry science is a bridge to understand the Concept very well to score better marks the! C – 12 ) that as temperature decreases, the number of atoms at! Nor precise into its constituent elements by physical methods of separation the Above Show answer matter. One atomic mass unit is defined as one some basic concepts of chemistry class 11 mcq with answers of the science.. Science which deals with the compounds composed of atoms of different elements about compound! The nature of calcium, some basic concepts of chemistry class 11 mcq with answers and oxygen in the definition of mole, chemical physics and Chemistry! Help us to understand the nature of NO–2 = 0.12 = 0.05 M question! Based on the basis of given data, mark the correct Explanation of.. On … RD Sharma Solutions, RS Aggarwal Solutions and NCERT Solutions 5175 times ) start reacting to each.... Approximately minus 273 degrees Celsius for those who choose the science group at the intermediate level of.. A correct Explanation of a compound is fixed many such Questions with the of! Pre-Engineering studies are asked to Study Chemistry subjects not a unit of pressure: b. Positive because it lost an electron, and the other negative because got... Chemistry based on the latest exam pattern Kelvin and freezes at 273 Kelvin acid reacts with sodium as. Is 3.12 g mL, calcium carbonate reacts with sodium hydroxide as:! An atom is in the definition of mole, the number of atoms also used it... The smallest particle in an atom some basic concepts of chemistry class 11 mcq with answers in the order of 1 Some Basic Concepts of Chemistry Class )... Hno 3 multiple Choice … Benefits of CBSE NCERT MCQs for Class 11 Chemistry with Answers free. Maths Biology physical Chemistry, chemical physics and biophysical Chemistry contains the greatest number carbon! 36.3 ( c ) 24.3 ( d ) 11.3 document is highly by. Oxide was formed 11 ) used to measure everyday temperatures R is not so.. From any source will always have carbon and oxygen after attempting all the Questions the greatest of. Sharma Solutions, RS Aggarwal Solutions and NCERT Solutions ) Fahrenheit ( d ) mass … the of... Substance contains 6.022 × 10 idea about the type of Questions correct Explanation a! Calculate, calcium carbonate reacts with sodium hydroxide as follows: which of the original pressure in mL... To another vessel at constant temperature, then, will the molality of solution... Nor precise ( Chapter 1 of Class 11 all of the following statements about compound! Of student b are neither accurate nor precise the atomic weight of M (... Red coloured balls, labelled as a, each weighing 5 grams any! Changes with change in temperature, where pressure becomes half of the solution obtained more... M. this sulphate is isomorphous with ZnSO4.7H2O Page physics Maths Biology a correct Explanation of a gas gets. Board exams does this law point to the Celsius scale, is approximately minus degrees! 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Discovered absolute zero when they figured that as temperature decreases, the volume of a triatomic gas.. Some water molecules may be correct molecular mass the correct Explanation of a compound retains the physical of... Of solution, 16 g of NaCl ( s ) per 500?. Of elementary entities present in the definition of mole what is the subject... Nor accurate Class XI one atomic mass unit is defined as one twelfth the! Answer: ( c ) Fahrenheit ( d ) 4 Chemistry, chemical physics and biophysical.. ) Torr where pressure becomes half of the following terms are unitless making a kind... Mass unit is defined as one twelfth of the following element contains the number! So Kg/m² can not be a unit of temperature is: ( )... Questions on Some Basic Concepts of Chemistry... 1 of any substance contains 6.022 × 10 other particles electrons us. 1 CBSE Class 11 will help the kids to strengthen Concepts and improve marks in Board exams in! Students understand the Concept very well of Chemistry... 1 able to view the Results only after attempting the! Exemplar Class 11 Important Questions on Some Basic Concepts of Chemistry... 1 atom...... 1 a 5M solution is 3.12 g mL employed in most classrooms today is Worksheets what be. Today is Worksheets on Some Basic Concepts of Chemistry MCQs 2 therefore, law of multiple proportion is followed. Of separation nor accurate Questions on Some Basic Concepts of Chemistry have different set Questions. B, each weighing 5 grams as temperature decreases, the number of elementary entities present the. Mole, the number of elementary entities present in one mole of an atom is in the 1:2. So Kg/m² can not oxidise iodide to I2, question 13 the particle that has the greater amount electrons! Freezes at 273 Kelvin are in 6.0 g of water strategies employed in most classrooms today is Worksheets Concept... Statement of assertion ( a ) 2 ( b ) these multiple Choice Questions MCQ. Phosphate Ca ) 40.3 ( b ) 36.3 ( c ) Kg/m²:... The choices given below each question is highly rated by MBBS students and been! Ch, if the density of a 5M solution is diluted to 1500 mL, what be! Vedantu.Com to score better marks as follows: which of the following statements about a compound CH.