NCERT Class 11 Chemistry Answer of Some Selected Problems

Read and download NCERT Class 11 Chemistry Answer of Some Selected Problems chapter in NCERT book for Class 11 Chemistry. You can download latest NCERT eBooks for 2022 chapter wise in PDF format free from Studiestoday.com. This Chemistry textbook for Class 11 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 11 Chemistry to understand the answers of the exercise questions given at the end of this chapter

Answer Of Some Selected Problems Class 11 Chemistry NCERT

Class 11 Chemistry students should refer to the following NCERT Book chapter Answer Of Some Selected Problems in standard 11. This NCERT Book for Grade 11 Chemistry will be very useful for exams and help you to score good marks

Answer Of Some Selected Problems NCERT Class 11

UNIT 1

1.17 ~ 15 × 10–4 g , 1.25 × 10–4 m

1.18 (i) 4.8 × 10–3 (ii) 2.34 × 105 (iii) 8.008 × 103 (iv) 5.000 × 102 (v) 6.0012

1.19 (i) 2 (ii) 3 (iii) 4 (iv) 3 (v) 4 (vi) 5

1.20 (i) 34.2 (ii) 10.4 (iii) 0.0460 (iv) 2810

1.21 (a) law of multiple proportion (b) (i) Ans : (106 mm, 1015 pm)

(ii) Ans : (10–6 kg, 106 ng)

(iii) Ans : (10–3 L, 10–3 dm3)

1.22 6.00 × 10–1 m =0.600 m

1.23 (i) B is limiting (ii) A is limiting

(iii) Stoichiometric mixture –No (iv) B is limiting

(v) A is limiting

1.24 (i) 2.43 × 103 g (ii) Yes (iii) Hydrogen will remain unreacted; 5.72 × 102g

1.26 Ten volumes

1.27 (i) 2.87 × 10–11m (ii) 1.515 × 10–11 m (iii) 2.5365 × 10–2kg

1.30 1.99265 × 10–23g

1.31 (i) 3 (ii) 4 (iii) 4

1.32 39.948 g mol–1

1.33 (i) 3.131 × 1025 atoms (ii) 13 atoms (iii) 7.8286 × 1024 atoms

1.34 Empirical formula CH, molar mass 26.0 g mol–1, molecular formula C2H2

1.35 0.94 g CaCO3

1.36 8.40 g HCl

UNIT 2

2.1 (i) 1.099 × 1027 electrons (ii) 5.48 × 10–7 kg, 9.65 × 104C

2.2 (i) 6.022 × 1024electrons

(ii) (a) 2.4088 × 1021 neutrons(b) 4.0347 × 10–6 kg

(iii) (a) 1.2044 × 1022 protons (b) 2.015 × 10–5 kg

2.3 7,6: 8,8: 12,12: 30,26: 50, 38

2.4 (i) Cl (ii) U (iii) Be

2.5 5.17 × 1014 s–1, 1.72 × 106m–1

2.6 (i) 1.988 × 10–18 J (ii) 3.98 × 10–15 J

 

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Chapter 1 Some Basic Concepts of Chemistry
NCERT Class 11 Chemistry Some Basic Concepts Of Chemistry
Chapter 2 Structure of Atom
NCERT Class 11 Chemistry Structure of Atom
Chapter 3 Classification of Elements and Periodicity in Properties
NCERT Class 11 Chemistry Classification of Elements and Periodicity In Properties
Chapter 4 Chemical Bonding and Molecular Structure
NCERT Class 11 Chemistry Chemical Bonding and Molecular Structure
Chapter 5 States of Matter
NCERT Class 11 Chemistry State Of Matter
Chapter 6 Thermodynamics
NCERT Class 11 Chemistry Thermodynamics
Chapter 7 Equilibrium
NCERT Class 11 Chemistry Equilibrium
Chapter 8 Redox Reactions
NCERT Class 11 Chemistry Redox Reactions
Chapter 9 Hydrogen
NCERT Class 11 Chemistry Hydrogen
Chapter 10 The s-Block Elements
NCERT Class 11 Chemistry The s Block Elements
Chapter 11 The p-Block Elements
NCERT Class 11 Chemistry The p Block Elements
Chapter 12 Organic Chemistry – Some Basic Principles & Techniques
NCERT Class 11 Chemistry Organic Chemistry Some Basic Priciples and Techniques
Chapter 13 Hydrocarbons
NCERT Class 11 Chemistry Hydrocarbons
Chapter 14 Environmental Chemistry
NCERT Class 11 Chemistry Environmental Chemistry
Other Chapters
NCERT Class 11 Chemistry Lab Manual Purification and Criteria of Purity
NCERT Class 11 Chemistry Lab Manual Systematics Qualitative Analysis
NCERT Class 11 Chemistry Lab Manual Basic Laboratory Techniques
NCERT Class 11 Chemistry Lab Manual Titrimetric Analysis
NCERT Class 11 Chemistry Lab Manual Chemical Equilibrium Ionic Equilibrium
NCERT Class 11 Chemistry Lab Manual Information about Investigatory Projects
NCERT Class 11 Chemistry Lab Manual Introduction
NCERT Class 11 Chemistry Lab Manual ph and ph change in Aqueous Solutions
Part I Answer to Some Selected Problems
NCERT Class 11 Chemistry Answer of Some Selected Problems
Part I Appendices
NCERT Class 11 Chemistry Appendix 2 Elements Their Atomic Number and Molar Mass
NCERT Class 11 Chemistry Appendix 3
NCERT Class 11 Chemistry Appendix 4 Physical Constants
NCERT Class 11 Chemistry Appendix 5 Some Useful Conversion Factores
NCERT Class 11 Chemistry Appendix 6 Thernodynamic Data at 298 K
NCERT Class 11 Chemistry Appendix 7 Standard Potentials at 298 K in Electrochemical order
NCERT Class 11 Chemistry Appendix 1
Part II Answer to Some Selected Problems
NCERT Class 11 Chemistry Answer to Some Selected Problems

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