1
JEE Main 2021 (Online) 27th August Evening Shift
+4
-1
Given below are two statements :

Statement I : Ethyl pent-4-yn-oate on reaction with CH3MgBr gives a 3$$^\circ$$-alcohol.

Statement II : In this reaction one mole of ethyl pent-4-yn-oate utilizes two moles of CH3MgBr.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Both Statement I and Statement II are false.
B
Statement I is false but Statement II is true.
C
Statement I is true but Statement II is false.
D
Both Statement I and Statement II are true.
2
JEE Main 2021 (Online) 27th August Evening Shift
+4
-1
The major product of the following reaction, if it occurs by SN2 mechanism is :

A
B
C
D
3
JEE Main 2021 (Online) 27th August Morning Shift
+4
-1
The major product of the following reaction is :

A
B
C
D
4
JEE Main 2021 (Online) 27th August Morning Shift
+4
-1
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Synthesis of ethyl phenyl ether may be achieved by Williamson synthesis.

Reason (R) : Reaction of bromobenzene with sodium ethoxide yields ethyl phenyl ether.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Both (A) and (R) are correct and (R) is the correct explanation of (A)
B
(A) is correct but (R) is not correct
C
(A) is not correct but (R) is correct
D
Both (A) and (R) are correct but (R) is not the correct explanation of (A).
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