1
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is not a solution?
A
Alloy
B
Milk
C
Air
D
Sugar
2
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Refining of petroleum is carried out using which one of the following techniques?
A
Evaporation
B
Fractional distillation
C
Separating funnel
D
Sublimation
3
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is a chemical change?
A
Dissolving sugar in water
B
Melting of ice
C
Crystallization
D
Milk turning sour
4
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is the correct molecular formula of ammonium carbonate if the valency of ammonium ion is (+1) and carbonate anion is (-2)?
A
(NH4)2CO3
B
NH4(CO3)2
C
(NH3)2CO3
D
NH4CO3
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