1
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds?
A
Bleaching powder
B
Baking soda
C
Plaster of Paris
D
Washing soda
2
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
LED (a semi-conductor device) is an abbreviation that stands for
A
Licence for Energy Dectector.
B
Light Energy Device.
C
Light Emitting Diode.
D
Lost Energy Detector.
3
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following is the chemical formula of Hypobromous acid?
A
HBrO4
B
HOBr
C
HBr
D
HBrO3
4
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Which one of the following is not used as a raw material in the manufacture of glass?
A
Soda
B
Alumina
C
Borax
D
Gypsum