NEET Chemistry: Questions 610 - 615 of 677

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Question number: 610

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

MCQ▾

Question

At room temperature, formaldehyde is?

Choices

Choice (4) Response
a.

A gas

b.

A liquid

c.

A solid

d.

Not known

Question number: 611

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

MCQ▾

Question

The decreasing order of the ratio of HCN addition to compounds A to D is

1. HCHO,

2. CH3COCH3 ,

3. Ph COCH3 ,

4 .PhCOPh

Choices

Choice (4) Response
a.

4 > 2 > 3 > 1

b.

4 > 3 > 2 > 1

c.

3 > 4 > 2 > 1

d.

1 > 2 > 3 > 4

Question number: 612

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

MCQ▾

Question

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

Reaction of aldehyde with HCN and then water

Reaction of Aldehyde With HCN and Then Water

Find the end-product produced by the reaction of aldehyde with HCN and then water

Choices

Choice (4) Response
a.

Acetic acid

b.

Acetamide

c.

Ethylamine

d.

2-Hydroxypropanoic acid

Question number: 613

» Organic Compounds With Oxygen » Aldehyde and Ketones » Acidity of Hydrogen

MCQ▾

Question

Which of the following statements about carbonyl compounds is correct?

Choices

Choice (4) Response
a.

α -H atom is acidic

b.

The anion left after the removal of H+ is stabilized Enolate anion

c.

The base, catalyzed Aldol condensation is due to the acidic nature of α -H atom

d. All a. , b. and c. are correct

Question number: 614

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

MCQ▾

Question

Which of the following does not give cannizzaro reaction?

Choices

Choice (4) Response
a.

P-nitro benzaldehyde

b.

Benzaldehyde

c.

Acetaldehyde

d.

Formaldehyde

Question number: 615

» Organic Compounds With Oxygen » Aldehyde and Ketones » Haloform Reaction

MCQ▾

Question

The compound that will not give iodoform test on treatment with alkali and iodine is?

Choices

Choice (4) Response
a.

Ethanol

b.

Acetone

c.

Diethyl ketone

d.

Isopropyl alcohol

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