CBSE Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry Multiple Choice Questions with Answers. MCQ Questions Class 11 Chemistry Some Basic Concepts of Chemistry with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Chemistry Some Basic Concepts of Chemistry MCQs with Answers to know their preparation level.
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MCQ Questions Class 11 Chemistry Some Basic Concepts of Chemistry with Answers - Set - 3
Question 1:
The molarity of H2SO4 solution, which has a density 1.84 g/cc. at 35° C and contains 98% by weight, is :
(a) 1.84 M
(b) 18.4 M
(c) 20.6 M
(d) 24.5 M
Correct Answer – (B)
Question 2 :
The weight of NaCl decomposed by 4.9g of H2SO4, if 6 g of sodium hydrogen sulphate and 1.825 g of HCl, were produced in the reaction is:
(a) 6.921 g
(b) 4.65 g
(c) 2.925 g
(d) 1.4 g
Correct Answer – (C)
Question 3 :
Volume of a gas at NTP is 1.12×10−7 cc. The number of molecule in it is :
(a) 3.01×1012
(b) 3.01×1018
(b) 3.01×1024
(d) 3.01×1030
Correct Answer – (A)
Question 4 :
The normality of solution obtained by mixing 10 ml of N/5 HCI and 30 ml of N/10 HCl is :
(a) N /15
(b) N /5
(c) N /7.5
(d N /8
Correct Answer – (D)
Question 5 :
60 gm of an organic compound on analysis is found to have C = 24 g, H = 4 g and O = 32 g. The empirical formula of compound is:
(a) CH2O
(b) CHO
(c) C2H2O
(d) C2H2O2
Correct Answer – (A)
MCQ Questions Class 11 Chemistry Some Basic Concepts of Chemistry with Answers
Question 6 :
Temperature does not affect :
(a) Molality
(b) Formality
(c) Molarity
(d) Normality
Correct Answer – (A)
Question 7 :
1021 molecules are removed from 200 mg of CO2. The moles of CO2 left are :
(a) 2.88 ×10×−3
(b) 28.8×10×−3
(c) 288×10×−3
(d) 28.8×103
Correct Answer – (A)
Question 8 :
The weight of a single atom of oxygen is :
(a) 1.057 × 1023 g
(b) 3.556 × 1023 g
(c) 2.656 × 10–23 g
(d) 4.538 × 10–23 g
Correct Answer – (C)
Question 9 :
The molar concentration of 20 g of NaOH present in 5 litre of solution is :
(a) 0.1 moles/litre
(b) 0.2 moles/litre
(c) 1.0 moles/litre
(d) 2.0 moles/litre
Correct Answer – (A)
Question 10 :
The oxide of an element contains 67.67% oxygen and the vapour density of its volatile chloride is 79. Equivalent weight of the element is:
(a) 2.46
(b) 3.82
(c) 4.36
(d) 4.96
Correct Answer – (B)
- NCERT Solutions Class 11 Chemistry Chapter 1 : Some Basic Concepts of Chemistry
- NCERT Solutions Class 11 Chemistry Chapter 2 : Structure Of The Atom
- NCERT Solutions Class 11 Chemistry Chapter 3 : Classification of Elements and Periodicity in Properties
- NCERT Solutions Class 11 Chemistry Chapter 4 : Chemical Bonding and Molecular Structure
- NCERT Solutions Class 11 Chemistry Chapter 5 : States of Matter
- NCERT Solutions Class 11 Chemistry Chapter 6 : Thermodynamics
- NCERT Solutions Class 11 Chemistry Chapter 7 : Equilibrium
- NCERT Solutions Class 11 Chemistry Chapter 8 : Redox Reactions
- NCERT Solutions Class 11 Chemistry Chapter 9 : Hydrogen
- NCERT Solutions Class 11 Chemistry Chapter 10 : The s-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 11 : The p-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 12 : Organic Chemistry: Some Basic Principles and Techniques
- NCERT Solutions Class 11 Chemistry Chapter 13 : Hydrocarbons
- NCERT Solutions Class 11 Chemistry Chapter 14 : Environmental Chemistry
