1
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A sample of 'soft soap' contains
A
caesium
B
potassium
C
calcium
D
magnesium
2
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following does not represent the salt, calcium carbonate?
A
Lime water
B
Limestone
C
Chalk
D
Marble
3
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following substances is not a mixture?
A
Tin
B
Sea water
C
Soil
D
Air
4
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is termed as 'dry ice'?
A
Ice present in ice-cream
B
Solid water at Antarctica
C
Solid state of carbon dioxide
D
Solid water of ionosphere
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