BITSAT (Birla Institute of Technology & Science Admission Test) Chemistry: Questions 151 - 155 of 180

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Question 151

Question

MCQ▾

The compound which reacts with HBr obeying Markownikov՚s rule is?

Choices

Choice (4)Response

a.

CH2 = CH2

b.

Which Reacts with HBr Obeying Markownikov՚s Rule: Choice B

c.

Which Reacts with HBr Obeying Markownikov՚s Rule: Choice C

d.

Which Reacts with HBr Obeying Markownikov՚s Rule: Choice D

Passage

Markownikoff s rule states, “the negative part of addendum is added on the carbon atom carrying lesser number of hydrogen atoms” .

Formation of Alkyl Halide

However, addition, of HBr on propylene in the presence of sunlight, air or an organic peroxide produces mainly n-propyl bromide instead of isopropyl bromide. In the presence of organic peroxides, addition of HBr takes place by a free radical mechanism as follows.

Formation of Phenyl Free Radical

Question 152 (1 of 3 Based on Passage)

Question

MCQ▾

Addition of HCl on

What Will be the Major Product Formed by this Reaction

Forms the following major product:

Choices

Choice (4)Response

a.

Major Product Formed Will be: Choice A

b.

Major Product Formed Will be: Choice B

c.

Major Product Formed Will be: Choice C

d.

Major Product Formed Will be: Choice D

Question 153 (2 of 3 Based on Passage)

Question

MCQ▾

Reaction of with in the presence of a peroxide yields the following product,

Choices

Choice (4)Response

a.

Formation of Product in Presence of Peroxide: Choice A

b.

Formation of Product in Presence of Peroxide: Choice B

c.

d.

No reaction takes place

Question 154 (3 of 3 Based on Passage)

Question

MCQ▾

When HCI gas is passed through propene in the presence of benzoyl peroxide, it gives:

Choices

Choice (4)Response

a.

2-Chloropropene

b.

No reaction

c.

n-Propyl chloride

d.

Allyl chloride

Question 155

Question

MCQ▾

The minimum number of C atoms required to be present in an optically active alkene are:

Choices

Choice (4)Response

a.

10

b.

6

c.

4

d.

8

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