1
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is Lindlar catalyst?
A
Partially deactivated palladised charcoal
B
Zinc chloride and HCl
C
Sodium and Liquid NH3
D
Cold dilute solution of KMnO4
2
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which among the following pairs of Vitamins is stored in our body relatively for longer duration?
A
Thiamine and Vitamin A
B
Ascorbic acid and Vitamin D
C
Thiamine and Ascorbic acid
D
Vitamin A and Vitamin D
3
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R :

Assertion A : Size of Bk3+ ion is less than Np3+ ion.

Reason R : The above is a consequence of the lanthanoid contraction.

In the light of the above statements, choose the correct answer from the options given below :
A
Both A and B are true and R is the correct explanation of A
B
A is false but R is true
C
A is true but R is false
D
Both A and B are true but R is not the correct explanation of A
4
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 101 English
The products ''A'' and ''B'' formed in above reactions are :
A
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 101 English Option 1
B
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 101 English Option 2
C
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 101 English Option 3
D
JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Haloalkanes and Haloarenes Question 101 English Option 4
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