1
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is NOT an example of organic compound?
A
Ammonium cyanate
B
Marsh gas
C
Urea
D
Cane sugar
2
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
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
3
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
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
4
NDA General Ability 3 September 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following metal is NOT an essential component in stainless steel?
A
Iron
B
Nickel
C
Chromium
D
Tin
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