1
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
A liquid is heated up to a certain temperature. Which one of the following situation would correspond to the boiling of the liquid?
A
When atmospheric pressure becomes equal to the vapour pressure
B
When atmospheric pressure becomes less than vapour pressure
C
When atmospheric pressure becomes higher than the vapour
pressure
D
When vapour pressure becomes equal to the air pressure
2
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following is NOT an example of organic compound?
A
Ammonium cyanate
B
Marsh gas
C
Urea
D
Cane sugar
3
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following acid is used by goldsmith for cleaning of gold and silver articles?
A
Sulphuric acid
B
Nitric acid
C
Hydrochloric acid
D
Phosphoric acid
4
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
What is the action of litmus on ethanol?
A
Litmus is neutral towards ethanol
B
Ethanol turns blue litmus to red; confirming acidic nature of ethanol
C
Ethanol turns red litmus to blue; confirming basic nature of ethanol
D
Ethanol decolorizes litmus through bleaching action