1
JEE Main 2021 (Online) 31st August Morning Shift
+4
-1
The major product formed in the following reaction is :

A
B
C
D
2
JEE Main 2021 (Online) 31st 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) : Treatment of bromine water with propene yields 1-bromopropan-2-ol.

Reason (R) : Attack of water on bromonium ion follows Markovnikov rule and results in 1-bromopropan-2-ol.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Both (A) and (R) are true but (R) is not the correct explanation of (A)
B
(A) is false but (R) is true
C
Both (A) and (R) are true and (R) is the correct explanation of (A)
D
(A) is true but (R) is false
3
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.
4
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
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