1
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statements about water is not true?
A
Hydrogen bonds are present in liquid water.
B
Water has a high boiling point.
C
Water has a high heat of fusion.
D
Water is a non-polar molecule.
2
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
3
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
4
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
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