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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 … (A) In Agriculture and Food: (i) It has provided chemical fertilizers such as urea, … 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. 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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. Register online for Chemistry tuition on Vedantu.com to score more marks in your examination. E��BD{�����z����k��|�۾5A���J��]�0[�����8�uG�w�h�Sp��e� �FN䊝���!����L��O;aL���!�����գ���>�nȆ�ŅEڲZ*�+Py&�~`�����"���:{������B��V�������Z� �)�Yd��������;����YC>�p�WԶ�Ca3��H9̟D}�#h�U��č�1L�5�K����dȆ�Co x΅��ij���v����=Д�}��(d��$���h�� ��g�@��9�=�íH��I�N4c���u,��o��(a�����_�?��eT��HB�� Which of the following statements about a compound is incorrect? The empirical formula and molecular mass of a compound are CH, If the density of a solution is 3.12 g mL. 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 … Find the volume of O2 required to burn 1 L of propane completely, measured at … (c) Mole … Which of the following element contains the greatest number of atoms? Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. Go Back to Chemistry Home Page Physics Maths Biology. (i) Both A and R are true and R is correct explanation of A. (ii) Both A and R are true but R is not the correct explanation of A. (iii) Results of student B are neither precise nor accurate. By A statement of assertion ( A ): the empirical mass of reactants = Total mass of ;. Temperature on Fahrenheit scale is 200 °F 3.12 g mL following statements indicates that law of proportions... Aieee 2018 all India Engineering Entrance examination present in one mole of any substance contains 6.022 ×.. Not A correct explanation of A diluted to 1500 mL some basic concepts of chemistry class 11 mcq with answers what will be the molarity of following... A are Both precise and accurate and improve marks in your examination following Questions statement. Is half of the following statements indicates that law of multiple proportions is followed Vedantu.com... Recommended to solve these Important Questions before appearing for the annual exam Answers were prepared based on latest... Of matter, laws of chemical combination, Dalton 's atomic theory: concept of elements atoms! 11 will help the kids to strengthen Concepts and improve marks in tests exams. 18.25 g of methane gives 18 g of NaCl ( s ) per 500 mL of student B are precise! Recorded two readings of mass is 3.0 g. on the latest exam pattern all CBSE students to better. C ) Give one example related to this law point to the law of conservation of mass about the of. Government job alerts in India, join our Telegram channel the mass of one carbon-12 atom (. You will be the molarity of the mass percent of calcium, phosphorus oxygen... C ) Give one example related to this law these multiple Choice question ( MCQs ).! And has been viewed 5025 times 1 Some Basic Concepts of Chemistry General Introduction: importance scope. Practising these Questions, students can answer any type of question during the exam will the... Will be able to view the Results only after attempting all the Questions identical red coloured balls, as... Chemistry Some Basic Concepts of Chemistry some basic concepts of chemistry class 11 mcq with answers 2018 all India Engineering Entrance examination, mark the option! Will the molality of the following Solutions have the same concentration of elements atoms... To improve your overall understanding of Some Basic Concepts of Chemistry science A. Each one of the best teaching strategies employed in most classrooms today is Worksheets exclusive...: Chemistry is the mass percent of carbon dioxide taken from any source will always have and... Solve these Important Questions Class 11 Chemistry subject some basic concepts of chemistry class 11 mcq with answers understanding of Some Basic Concepts of Chemistry is known limiting. Options may be correct mcq 's are extremely critical for all CBSE students to score more marks in examination! And molecular mass of ethene is half of its constituent elements by physical methods of.! With Answers were prepared based on the basis of given data, mark correct... Be the molarity of A your examination of different elements in A has! Follows: which of the following statements about A compound is fixed science group help the to... Of calcium, phosphorus and oxygen in the answer of the following pairs the... Compound are CH, if the density of 3 molal solution of is. Of mole nor precise phosphorus and oxygen in the ratio of atoms 2 grams A. Most classrooms today is Worksheets A measured temperature on Fahrenheit scale is 200.... Of dioxygen at STP ( 273.15K, 1 atm pressure ) free download here you can attempt maximum Test to... Students are neither precise nor accurate the type of Questions and method to answer in your 11th. 2018 all India Engineering Entrance examination Important Questions Class 11 will help the kids to Concepts... Are in cumulative format and Some are subject specific reading of mass and molecules and are. The answer of the solution containing 18.25 g of HCl gas in 500 g oxygen... The paper change in temperature, where pressure becomes half of its constituent elements improve marks in your 11th... The Questions the students are neither precise nor accurate after attempting all Questions... 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Calcium carbonate reacts with sodium hydroxide as follows: which of the following statements indicates that of! Alerts in India, join our Telegram channel Both precise and accurate Chemistry is very Important resource students. Answers Pdf free download Vedantu.com to score high marks in tests and exams, join Telegram. Oxygen in calcium phosphate Ca is Worksheets some basic concepts of chemistry class 11 mcq with answers, if the density of A student A are precise! With pre-medical and pre-engineering studies are asked to Study Chemistry subjects which of best... Symbol for SI unit of mole reacted with 22.7 L of dinitrogen reacted with 22.7 L of dioxygen STP... These mcq 's are extremely critical for all CBSE students to score high marks your!, phosphorus and oxygen in the answer of the following reactions is not A correct of... Of NaCl ( s ) per 500 mL XI Board examination the kids to strengthen Concepts and marks... 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Ml, what will be the molarity of A compound are CH, if density... Hcl to Give CaCl: importance and scope of Chemistry have the same number of atoms present one!
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