1
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
2
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
3
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
4
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Suppose you have four test tubes labelled A, B, C and D. A contains water, B contains solution of an alkali, C contains solution of an acid, and D contains solution of sodium chloride. Which one of these solutions will turn phenolphthalein solution pink?
A
Solution A
B
Solution B
C
Solution C
D
Solution D
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