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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

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What is the action of nitrous acid on aniline?

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Complete the following reaction:

\[\ce{Na2SO3 + Cl2 + H2O -> \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}}\]

[7.03] Group 17 Elements
Chapter: [7.03] Group 17 Elements
Concept: undefined >> undefined

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What is the action of hydrogen cyanide on the following?

Benzaldehyde

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

What is the action of hydrogen cyanide on the following?

Benzaldehyde

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Oxygen is highly soluble in blood. Give reason.

[10] Halogen Derivatives
Chapter: [10] Halogen Derivatives
Concept: undefined >> undefined

What are integrated rate laws?

[6] Chemical Kinetics
Chapter: [6] Chemical Kinetics
Concept: undefined >> undefined

Arrange O - H, C - H and N - H bonds in increasing order of their bond polarity.

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

How does entropy change in the following process? Explain.

Dissolving sugar in water

[2] Solutions
Chapter: [2] Solutions
Concept: undefined >> undefined

Explain the magnetic properties of d-block (or transition) elements.

[8.01] D-block Elements
Chapter: [8.01] D-block Elements
Concept: undefined >> undefined

What is esterifications? How is an ester obtained from alcohol or phenol?

[11.01] Alcohols
Chapter: [11.01] Alcohols
Concept: undefined >> undefined

Arrange the following compounds in an increasing order of their solubility in water:

[11] Alcohols, Phenols and Ethers
Chapter: [11] Alcohols, Phenols and Ethers
Concept: undefined >> undefined

Explain the solubility of gases in liquids.

[2] Solutions
Chapter: [2] Solutions
Concept: undefined >> undefined

Write Stephen reaction for the preparation of aldehyde.

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Write Stephen reaction for the preparation of aldehyde.

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

What is an electrochemical cell? What does it consist of?

[5] Electrochemistry
Chapter: [5] Electrochemistry
Concept: undefined >> undefined

What are electrochemical reactions?

[5] Electrochemistry
Chapter: [5] Electrochemistry
Concept: undefined >> undefined

How butanone is prepared from alcohol?

[12.01] Aldehydes and Ketones
Chapter: [12.01] Aldehydes and Ketones
Concept: undefined >> undefined

How butanone is prepared from alcohol?

[12] Aldehydes, Ketones and Carboxylic Acids
Chapter: [12] Aldehydes, Ketones and Carboxylic Acids
Concept: undefined >> undefined

Explain the use of different transition metals as catalysts.

[8.01] D-block Elements
Chapter: [8.01] D-block Elements
Concept: undefined >> undefined

Write reactio between Cl2 and water.

[7.03] Group 17 Elements
Chapter: [7.03] Group 17 Elements
Concept: undefined >> undefined
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