NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 621 - 625 of 1259

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Question number: 621

» Organic Compounds with Oxygen » Aldehyde and Ketones » Nucleophilic Addition to >C=O Group

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MCQ▾

Question

In the following sequence of reaction the end-product is?

Condensation of aldehyde with mild alkali and then dehydration

Condensation of Aldehyde with Mild Alkali and then Dehydration

Choices

Choice (4)Response

a.

Aldol

b.

Paraldehyde

c.

Crotonaldehyde

d.

Metaldehyde

Question number: 622

» Organic Compounds with Oxygen » Aldehyde and Ketones » Cannizzaro Reaction

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MCQ▾

Question

The below reaction is an example of?

Equation of reaction of aldehyde with NaOH

Equation of Reaction of Aldehyde with NaOH

Choices

Choice (4)Response

a.

Rosenmund reaction

b.

Wurtz reaction

c.

Cannizaro’s reaction

d.

Frankland reaction

Question number: 623

» Organic Compounds with Oxygen » Aldehyde and Ketones » Relative Reactivities of Aldehydes and Ketones

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MCQ▾

Question

Aldehydes are first oxidation products of?

Choices

Choice (4)Response

a.

Secondary alcohols

b.

Tertiary alcohols

c.

Primary alcohols

d.

Monohydric alcohols

Question number: 624

» Organic Compounds with Oxygen » Aldehyde and Ketones » Grignard Reagent Oxidation Reduction

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MCQ▾

Question

For the given reaction product Y is?

Reaction of 1-bromo-4-fluorobenzene with magnesium & dry ether

Reaction of 1-Bromo-4-Fluorobenzene with Magnesium & Dry Ether

Choices

Choice (4)Response

a.

End produced by reaction of 1-bromo-4-fluorobenzene -Choice - A

End Produced by Reaction of 1-Bromo-4-Fluorobenzene -Choice - A

b.

End produced by reaction of 1-bromo-4-fluorobenzene -Choice - B

End Produced by Reaction of 1-Bromo-4-Fluorobenzene -Choice - B

c.

End produced by reaction of 1-bromo-4-fluorobenzene -Choice - C

End Produced by Reaction of 1-Bromo-4-Fluorobenzene -Choice - C

d.

End produced by reaction of 1-bromo-4-fluorobenzene -Choice - D

End Produced by Reaction of 1-Bromo-4-Fluorobenzene -Choice - D

Question number: 625

» Organic Compounds with Oxygen » Aldehyde and Ketones » Nature of Carbonyl Group

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MCQ▾

Question

Which of the following statements is wrong?

Choices

Choice (4)Response

a.

Aldehydes and ketones are good reducing agents

b.

Aldehydes are more reactive than ketones

c.

Aldehydes and ketones are polar compounds

d.

Aldehydes and ketones are reduced to alcohols.

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