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Science (English Medium) Class 11 - CBSE Question Bank Solutions

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Write a balanced equation for \[\ce{H3BO3 ->[\Delta]}\]?

[11] Some P-block Elements
Chapter: [11] Some P-block Elements
Concept: undefined >> undefined

Boric acid is polymeric due to ______.

[11] Some P-block Elements
Chapter: [11] Some P-block Elements
Concept: undefined >> undefined

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Find the oxidation state of sodium in Na2O2.

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

Discuss the various reactions that occur in the Solvay process.

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

Potassium carbonate cannot be prepared by Solvay process. Why?

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

Starting with sodium chloride how would you proceed to prepare sodium metal.

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

Describe two important uses of each of the following caustic soda.

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

Describe two important uses of the following sodium carbonate.

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

What happens when sodium metal is dropped in water?

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

What happens when sodium metal is heated in the free supply of air?

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

State as to why a solution of Na2CO3 is alkaline?

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

Write a balanced equation for the reaction between Na2Oand water.

[10] S-block Elements (Alkali and Alkaline Earth Metals)
Chapter: [10] S-block Elements (Alkali and Alkaline Earth Metals)
Concept: undefined >> undefined

Draw a formula for the first five members of the homologous series beginning with the given compound.

H–COOH

[8] Organic Chemistry - Some Basic Principles and Techniques
Chapter: [8] Organic Chemistry - Some Basic Principles and Techniques
Concept: undefined >> undefined

Draw a formula for the first five members of the homologous series beginning with the given compound.

CH3COCH3

[8] Organic Chemistry - Some Basic Principles and Techniques
Chapter: [8] Organic Chemistry - Some Basic Principles and Techniques
Concept: undefined >> undefined

Draw a formula for the first five members of the homologous series beginning with the given compound.

H–CH=CH2

[8] Organic Chemistry - Some Basic Principles and Techniques
Chapter: [8] Organic Chemistry - Some Basic Principles and Techniques
Concept: undefined >> undefined

Identify the functional group in the following compound.

[8] Organic Chemistry - Some Basic Principles and Techniques
Chapter: [8] Organic Chemistry - Some Basic Principles and Techniques
Concept: undefined >> undefined

Identify the functional group in the following compound.

[8] Organic Chemistry - Some Basic Principles and Techniques
Chapter: [8] Organic Chemistry - Some Basic Principles and Techniques
Concept: undefined >> undefined

Identify the functional group in the following compound.

[8] Organic Chemistry - Some Basic Principles and Techniques
Chapter: [8] Organic Chemistry - Some Basic Principles and Techniques
Concept: undefined >> undefined

Complete the following reaction:

\[\ce{H_{2(g)} + M_M O_{O(s)} ->[\Delta]}\] ?

[9] Hydrogen
Chapter: [9] Hydrogen
Concept: undefined >> undefined

Complete the following reaction:

\[\ce{CO_{(g)} + H_{2(g)} ->[\Delta][catalyst]}\] ?

[9] Hydrogen
Chapter: [9] Hydrogen
Concept: undefined >> undefined
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