1
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following elements will not react with dilute HCl to produce H2 ?
A
Hg
B
Al
C
Mg
D
Fe
2
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
When a solid is heated, it turns directly into a gas. This process is called
A
condensation
B
evaporation
C
sublimation
D
diffusion
3
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is water gas?
A
Mixture of carbon monoxide and hydrogen
B
Mixture of carbon monoxide and nitrogen
C
Mixture of carbon dioxide and water vapour
D
Mixture of carbon monoxide and water vapour
4
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A glass vessel is filled with water up to the brin and a lid is fixed to it tightly. Then it is kept inside a freezer for hours. What is expected to happen?
A
The water freezes to ice and the level of ice comes down
B
The water in the glass vessel summer freezes to ice
C
The glass vessel breaks due to expansion as water freezes to ice
D
The water does not freeze at all
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