Organic Compounds with Oxygen-Preparation, Properties and Reactions and Uses (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 1 - 4 of 19

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Question number: 1

» Organic Compounds with Oxygen » Preparation, Properties and Reactions and Uses

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MCQ▾

Question

Which reagent is useful in converting 1-butanol to 1-bromobutane?

Choices

Choice (4) Response

a.

CH3Br

b.

CHBr3

c.

Br2

d.

PBr3

Question number: 2

» Organic Compounds with Oxygen » Preparation, Properties and Reactions and Uses

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Tert- butyl alcohol undergoes acid catalysed dehydration readily than propanol.

Reason (Ꭱ)

3° alcohols do not give Victor-Meyer’s test.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Question number: 3

» Organic Compounds with Oxygen » Preparation, Properties and Reactions and Uses

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MCQ▾

Question

Alcohols

(i) CH3CH2CH2OH, (ii) CH3- CHOH - CH3 and

(iii) CH3 - C (CH3) (OH) - CH3 were treated with Lucas reagent (Cone. HCl + ZnCl2).

What results do you expect at room temperature?

Choices

Choice (4) Response

a.

(iii) reacts immediately, (ii) reacts in about 5 minutes and (i) not at all

b.

(i) reacts immediately, (ii) reacts in about 5 minutes and (iii) not at all

c.

(ii) and (iii) react immediately and (i) in about 5 minutes

d.

(i) reacts in about 5 minutes, (ii) reacts in about 15 minutes and (iii) not at all

Question number: 4

» Organic Compounds with Oxygen » Preparation, Properties and Reactions and Uses

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MCQ▾

Question

Which of the following statements are correct?

(1) A secondary alcohol on oxidation gives a ketone

(2) Ethanol reacts with cone. H2SO4 at 1800 C to yield ethylene

(3) Hydrogen gas is liberated when sodium is added to alcohol.

(4) Methanol reacts with iodine and sodium hydroxide to give a yellow precipitate of iodoform

In the following questions, more than one of the answers given are correct. Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

1 and 2 are correct

c.

1 and 3 are correct

d.

2 and 4 are correct

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