1
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is the colour of hydrogen gas?
A
Light yellow
B
Orange
C
Black
D
Colourless
2
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is not a pigment?
A
Zinc oxide
B
Chalk
C
White lead
D
Silica
3
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements about fertilizers is not correct?
A
Urea is a phosphorus-containing fertilizer.
B
Application of fertilizer to the soil increases fertility of the soil.
C
Urea can be prepared by action of ammonia and carbon dioxide under high pressure and at high temperature.
D
Urea contains more nitrogen than other fertilizers.
4
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements is not correct?
A
Most carbon compounds are good conductors of electricity.
B
Bonding in organic compounds is covalent.
C
Graphite is used as a lubricant.
D
Diamond is an allotrope of carbon.
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