some basic concepts of chemistry questions

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What will be the molarity of a solution, which contains 5.85 g of NaCl(s) per 500 mL? (i) Both A and R are true and R is correct explanation of A. The table given … Sulphuric acid reacts with sodium hydroxide as follows : Which of the following pairs have the same number of atoms? (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. (i) A molecule of a compound has atoms of different elements. Elements X and Y combine to form two compounds XY and X2Y. Which of the following terms are unitless? (i) Both A and R are true and R is the correct explanation of A. Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. Find the atomic weight of X and Y, if the weight of 0.1 moles of XY … Assertion (A) : Significant figures for 0.200 is 3 where as for 200 it is 1. Consider the combinations AB, AB. (D) 10.8, Your email address will not be published. (D) 6.026 × 1022, 4. 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. (C) 16:1:2 (A) As+ (i) Sample of carbon dioxide taken from any source will always have carbon and oxygen in the ratio 1:2. 1. Free Question Bank for NEET Chemistry Some Basic Concepts of Chemistry (D) 6.02 × 1023, 6. (B) 1.806 × 1022 SOME BASIC CONCEPTS OF CHEMISTRY 1 mark questions 1. The number of atoms present in 0.1 moles of a triatomic gas is. (A) 64.8 g/mole (C) 6 L NEET Chemistry Some Basic Concepts of Chemistry Multiple Choice Questions, 1. How does this law point to the existance of atoms? (C) 16 g/mole Go Back to Chemistry Home Page Physics Maths Biology. What are the basic constituents of matter? The number of atoms present in one mole of an element is equal to Avogadro number. The gas is now transferred to another vessel at constant temperature, where pressure becomes half of the original pressure. (C) 2.01 × 1023 The empirical formula and molecular mass of a compound are CH, If the density of a solution is 3.12 g mL. Find out the average atomic weight of boron in the periodic table … of N/2 HCl and 30 c.c. 75 c.c. How many significant figures should be present in the answer of the following calculations? (D) 8 g/mole, 10. The density of 3 molal solution of NaOH is 1.110 g mL. A measured temperature on Fahrenheit scale is 200 °F. of N/5 H 2 SO 4, 10 c.c. Hurry Up! This article talks about important concept, formulae and previous years' questions related to Basic Concepts of Chemistry for JEE Main and JEE Advanced Examination 2019. Which of the following statements indicates that law of multiple proportion is being followed. Ans: The basic constituents of matter are atoms and molecules 3. Question from very important topics are covered by NCERT Exemplar Class 11. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11. Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements. Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. What will this reading be on Celsius scale? Cisplatin 2. 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. 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? Following reaction takes place. Important questions, guess papers, most expected questions and best questions from 11th Chemistry chapter 01 Some Basic Concepts of Chemistry have CBSE chapter wise important questions with solution for free download in PDF format. 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? What is Chemistry? Which of the species is not paramagnetic? Copyright 2020 , Engineering Interview Questions.com. Some Basic Concepts of Chemistry - Questions, Tests and Video Lectures. (A) 10.0 Choose the correct option out of the choices given below each question. (B) 1.8 grams of water Taxol 4. (B) 11.2 (C) force per unit volume 0.194 N. 0.244 N. Answer. Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject. (iii) Results of student B are neither precise nor accurate. Volume of a solution changes with change in temperature, then, will the molality of the solution be affected by temperature? A gas X has Cp and Cv ratio as 1.4, at NTP 11.2 L of gas X will contain_______ number of atoms Chemistry Important Questions Class 11 are given below. (A) energy per unit volume You also get idea about the type of questions and method to answer in your Class 11th examination. (b) 1.806 × 1022. (B) 32 g/mole A box contains some identical red coloured balls, labelled as A, each weighing 2 grams. (A) 10 L Calculate, Calcium carbonate reacts with aqueous HCl to give CaCl. 0.97 N. 0.142 N . 11th Chemistry chapter 01 Some Basic Concepts of Chemistry have many topics. Assertion (A) : One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom. (iv) At constant temperature and pressure 200 mL of hydrogen will combine with 100 mL oxygen to produce 200 mL of water vapour. NEET Chemistry : Some Basic Concepts of Chemistry. (iv) The ratio of atoms of different elements in a compound is fixed. of N/10 HNO 3 are mixed together. One mole of any substance contains 6.022 × 10. The reactant which is entirely consumed in reaction is known as limiting reagent. Find the atomic weight of X and Y, if the weight of 0.1 moles of XY is 10g and 0.05 moles of X2Y is 9g So these NEET Chemistry MCQs with Answers for all Concepts as per the new syllabus. If 500 mL of a 5M solution is diluted to 1500 mL, what will be the molarity of the solution obtained? 35.4 mL of HCl is required for the neutralization of a solution containing 0.275 g of sodium hydroxide. (iv) Results of student B are both precise and accurate. Varähmihir’s Brihat Samhita gives references to perfumes and cosmetics. (iii) Amount of Fe 2 O 3 can be increased by taking any one of the reactants (iron or oxygen) in excess. Find all the NEET Chemistry important questions from the chapter Some Basic Concept of Chemistry With solutions to perform better in the exam here. The normality of hydrochloric acid is? (B) 3.01 × 1023 (B) 7 L 2. SOME BASIC CONCEPTS OF CHEMISTRY 3 A number of classical texts, like Atharvaveda (1000 BCE) mention some dye stuff, the material used wer e tur meric, madder, sunflower , orpiment, cochineal and lac. MCQs on Some Basic Concepts of Chemistry : 1. (ii) Total mass of reactants = total mass of product; therefore, law of multiple proportions is followed. (C) 18 grams of water Find the volume of O2 required to burn 1 L of propane completely, measured at 0℃ temperature and 1 atm pressure (A) 16:8:1 Some other substances having tinting property were kamplcica, pattanga and jatuka. These Some Basic Concept of Chemistry Handwritten Notes in Pdf will help you to prepare different competitive exams like GATE, PSUs and so on. (ii) Results of student A are both precise and accurate. These Topper’s Class typed/scanned notes of Some Basic Concept of Chemistry Handwritten Notes in Pdf will help you to understand all key concepts. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. MCQs on Some Basic Concepts of Chemistry : Your email address will not be published. A container has an equal mass of H2, O2 and CH4 at 27℃, the ratio of their volume is What is the mass percent of carbon in carbon dioxide? Here you can get Class 11 Important Questions Chemistry based on NCERT Text book for Class XI. (i) Results of both the students are neither accurate nor precise. (a) 1.806 × 1023. Assertion (A) : The empirical mass of ethene is half of its molecular mass. Define the law of multiple proportions. (D) 18 moles of water, 3. Some Basic Concepts of Chemistry's Previous Year Questions with solutions of Chemistry from JEE Main subject wise and chapter wise with solutions Give reason for your answer. Boron exists as two stable isotopes; 10B(19%) and 11B(81%). (B) 8:1:2 (D) force, 8.

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