1
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Bronze is an alloy of
A
Cu and Zn 
B
Cu and Sn 
C
Zn and Mg
D
Fe and Cu 
2
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
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
3
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
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
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
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