1
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following metals floats in cold water?
A
Magnesium
B
Calcium
C
Potassium
D
Copper
2
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following solutions is not capable of conducting electricity?
A
Copper sulphate
B
Sodium chloride
C
Sugar
D
Sodium hydroxide
3
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Which of the following compounds undergoes/undergo thermal decomposition?
A
Zinc oxide
B
Silver oxide and zinc oxide
C
Silver oxide
D
Magnesium oxide
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Silver artifacts get tarnished in the air due to the formation of
A
silver chloride
B
silver oxide
C
silver sulphide
D
silver sulphate