1
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following salts does not possess water of crystallization?
A
Potassium permanganate
B
Blue vitriol
C
Washing soda
D
Mohr’s salt
2
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Bee sting leaves an acid which causes pain and irritation. The acid released is
A
tartaric acid 
B
methanoic acid
C
ethanoic acid
D
citric acid
3
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Liquid vegetable oils are converted to solid margarine by the use of
A
hydrogen gas
B
chlorine gas
C
carbon dioxide gas
D
oxygen gas
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The number of structural isomers of pentane is 
A
5
B
4
C
2
D
3
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