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1
JEE Main 2021 (Online) 18th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
2
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The set that represents the pair of neutral oxides of nitrogen is :
A
NO and N2O
B
N2O and NO2
C
NO and NO2
D
N2O and N2O3
3
JEE Main 2021 (Online) 16th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
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
Out of Syllabus
Change Language
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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