1
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Airbags work on the principle of a chemical reaction triggered by the impact producing a gaseous product that causes a sudden volume change. Which one among the following chemical conversions is responsible for this?
A
Sodium azide into nitrogen gas
B
Solid carbon dioxide into gaseous carbon dioxide
C
Carbon dioxide into carbon monoxide
D
Sudden conversion of gaseous carbon dioxide into carbon monoxide
2
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is the correct reactivity series with water?
A
Zinc > Iron > Lead > Copper
B
Copper > Lead > Zinc > Iron
C
Copper > Zinc > Iron > Lead
D
Zinc > Copper > Iron > Lead
3
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following metals floats in cold water?
A
Magnesium
B
Calcium
C
Potassium
D
Copper
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following solutions is not capable of conducting electricity?
A
Copper sulphate
B
Sodium chloride
C
Sugar
D
Sodium hydroxide
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12