Category: Class 11 Chemistry

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NCERT Solutions for Class 11 Chemistry Chapter 14 Environmental Chemistry

NCERT Solutions for Class 11 Chemistry Chapter 14 Environmental Chemistry NCERT Class 11 Chemistry Texbook Chapter 14 Solved Questions Question 1. Define environmental chemistry? Answer: Environmental Chemistry is the branch of science which deals with the chemical changes in the environment. It includes our surroundings such as air, water, soil, forest etc. Question 2. Explain the…
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NCERT Solutions for Class 11 Chemistry Chapter 13 Hydrocarbons

NCERT Solutions for Class 11 Chemistry Chapter 13 Hydrocarbons NCERT Class 11 Chemitry Chapter 13 Questions Solved Question 1. How do you account for the formation of ethane during chlorination of methane? Answer: Chlorination of methane is a free radical reaction which occurs by the following mechanism: From the above mechanism, it is evident that during…
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NCERT Solutions for Class 11th Chemistry Chapter 12 Organic Chemistry Some Basic Principles and Techniques

NCERT Solutions for Class 11th Chemistry Chapter 12 Organic Chemistry Some Basic Principles and Techniques NCERT TEXTBOOK QUESTIONS SOLVED Question 1.  What are hybridisation states of each carbon atom in the following compounds? CH2=C=O, CH3CH=CH2, (CH3)2CO, CH2=CHCN, C6H6. Answer: Question 2. Indicate the a- and n-bonds in the following molecules: C6H6 , C6H12, CH2Cl2, CH=C=CH2, CH3NO2,…
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NCERT Solutions for Class 11 Chemistry Chapter 11 The p-Block Elements

NCERT Solutions for Class 11 Chemistry Chapter 11 The p-Block Elements NCERT Class 11 Chemistry Texbook Solved Questions Question 1. Discuss the pattern of variation in the oxidation states of (i) B to Tl (ii) C to Pb. Answer:  (i) B to Tl Common oxidation states are +1 and +3. The stability of +3 oxidation state…
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NCERT Solutions for Class 11 Chemistry Chapter 10 The s-Block Elements

NCERT Solutions for Class 11 Chemistry Chapter 10 The s-Block Elements NCERT Class 11 Chemistry Textbook Solved Questions Question 1. What are the common physical and chemical features of alkali metals? Answer: Physical properties of alkali metals: Alkali metals have low ionization enthalpies. Alkali metals are highly electropositive in nature. Alkali metals exhibit +1 oxidation states…
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NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen

NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen NCERT Class 11 Chemitry Textbook Questions Solved Question 1. Justify the position of hydrogen in the periodic table on the basis of its electronic configuration. Answer: Hydrogen has been placed at the top of the alkali metal in group, but it is not a member of the…
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NCERT Solutions for Class 11 Chemistry Chapter 8 Redox Reactions

NCERT Solutions for Class 11 Chemistry Chapter 8 Redox Reactions Class 11 Chemistry NCERT Solutions Chapter 8 Question 1.  Assign oxidation number to the underlined elements in each of the following species: Answer: Question 2. What are the oxidation number of the underlined elements in each of the following and how do you rationalise your…
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NCERT Solutions for Class 11 Chemistry Chapter 7 Equilibrium

NCERT Solutions for Class 11 Chemistry Chapter 7 Equilibrium NCERT TEXTBOOK QUESTIONS SOLVED Question 1. A liquid is in equilibrium with its vapours in a sealed container at a fixed temperature. The volume of the container is suddenly increased, (i) What is the initial effect of the change on the vapour pressure? (ii) How do…
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NCERT Solutions for Class 11 Chemistry Chapter 6 Thermodynamics

NCERT Solutions for Class 11 Chemistry Chapter 6 Thermodynamics NCERT Class 11 Chemistry Textbook QUESTIONS SOLVED Question 1. Choose the correct answer: A thermodynamic state junction is a quantity (i) used to determine heat changes (ii) whose value is independent of path (iii) used to determine pressure volume work (iv) whose value depends on temperature…
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NCERT Solutions for Class 11 Chemistry Chapter 5 States of Matter

NCERT Solutions for Class 11 Chemistry Chapter 5 States of Matter NCERT TEXTBOOK QUESTIONS SOLVED Question 1. What will be the minimum pressure required to compress 500 dm3 of air at 1 bar to 200 dm3 at 30°C? Answer: P1 = 1 bar,P2 = ?       V1= 500 dm3 ,V2=200 dm3 As temperature remains…
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