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JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Match List - I with List - II

List - I
(process)
List - II
(catalyst)
(a) Deacron's process (i) ZSM-5
(b) Contact process (ii) $$CuC{l_2}$$
(c) Cracking of hydrocarbons (iii) Particles 'Ni'
(d) Hydrogenation of vegetable oils (iv) $${V_2}{O_5}$$


Choose the most appropriate answer from the options given below :
A
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
B
(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
C
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
D
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
2
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
The number of ionisable hydrogens present in the product obtained from a reaction of phosphorus trichloride and phosphonic acid is :
A
3
B
0
C
2
D
1
3
JEE Main 2021 (Online) 16th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
The INCORRECT statement regarding the structure of C60 is :
A
The five-membered rings are fused only to six-membered rings.
B
It contains 12 six-membered rings and 24 five-membered rings.
C
Each carbon atom forms three sigma bonds.
D
The six-membered rings are fused to both six and five-membered rings.
4
JEE Main 2021 (Online) 16th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Match List - I with List - II :

List - I
Industrial process
List - II
Application
(a) Haber's process (i) $$HN{O_3}$$ synthesis
(b) Ostwald's process (ii) Aluminium extraction
(c) Contact process (iii) $$N{H_3}$$ synthesis
(d) Hal-Heroult process (iv) $${H_2}S{O_4}$$ synthesis


Choose the correct answer from the options given below :
A
(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
B
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
C
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
D
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
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