1
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
The structures A and B formed in the following reaction are : [Ph = $$-$$C6H5]
A
B
C
D
2
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
For the reaction given below :-
The compound which is not formed as a product in the reaction is a :
The compound which is not formed as a product in the reaction is a :
3
JEE Main 2021 (Online) 31st August Morning Shift
MCQ (Single Correct Answer)
+4
-1
The structure of product C, formed by the following sequence of reactions is :
A
B
C
D
4
JEE Main 2021 (Online) 27th August Evening Shift
MCQ (Single Correct Answer)
+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 :
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 :
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