Principles of Organic Chemistry-Free Radical Reactions [JEE (Based on NTA Guidelines-IIT Engg.) Mains Chemistry]: Questions 1 - 5 of 10

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Question 1

Question MCQ▾

Which free radical is the most stable?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 2

Question MCQ▾

Which of the following statements does not apply to free radical chain reaction?

Choices

Choice (4)Response

a.

One mole of product is obtained for each mole of free radical produced in the initiation step

b.

It is inhibited by the presence of certain reagents

c.

It is not affected by changes in polarity of solvent

d.

It may be initiated by ultraviolet rays

Edit

Question 3

Question MCQ▾

Which one is the characteristic feature of a free radical?

Choices

Choice (4)Response

a.

Associated with high stability

b.

Presence of even number of electrons

c.

Presence of negative or positive charge

d.

Presence of unpaired electron

Edit

Question 4

Question MCQ▾

Which of the following statements is wrong?

Choices

Choice (4)Response

a.

A tertiary free radical is more stable than a second ai free radical

b.

A secondary free radical is more stable than a primal

c.

A tertiary carbonium ion is more stable than secondary carbonium ion

d.

A primary carbonium ion is more stable than secondary carbonium ion

Edit

Question 5

Question MCQ▾

Which of the following statements is characteristic of free radical chain reaction?

(1) It gives major product derived from most stable free radical

(2) It proceeds in three main steps like initiation, propagation and termination

(3) It may be initiated by U. V. light

(4) It is usually sensitive to change in solvent polarity

Choices

Choice (4)Response

a.

2 and 4 are correct

b.

1 and 3 are correct

c.

1 and 2 are correct

d.

1 and 4 are correct

Edit