AIIMS 2019 Organic Chemistry Revision Quiz 2 for NEET & AIIMS Exams

Question 1

An allylide on hydrolysis gives allylene. The alkaline earth metal cation of allylide dissolves in dry ether in the presence of alkyl halide to form Grignard reagent. The allylide is

Question 2

Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choice.

Assertion (A) The order of stability of carbanion are

Reason (R)The stability of carbanions is influenced by both resonance and inductive effects.

Question 3

Direction: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as:

Assertion: Aniline does not undergo Friedel-Crafts reaction.
Reason: Friedel-Crafts is an electrophilic substitution reaction.

Question 4

Give the correct basicity order of the following compound
(I)

(II)

(III)

(IV)

Question 5

If the rate of decomposition of

during a certain time internal is

.

What is the rate of formation of

and

?

Question 6

Direction: In each of the following questions, two statements are given. One is assertion and the other is reason. Examine the statement carefully and mark the correct answer according to the instruction given below

Assertion Al₂O₃is converted to aluminium by reduction with carbon.
Reason Carbon (graphite) has greater affinity for oxygen than Al.

Question 7

C₃H₆O did not give a silver mirror with Tollens reagent, but gave an oxime with hydroxylamine. It can give positive.

Question 8

Direction: In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choice.

Assertion (A) Acyl halide are more reactive than acid substance amide toward nucleophilic substitution.
Reason (R)

are better leaving group that

.