1
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
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
2
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
In electrolytic refining of copper, the electrolyte is a solution of
A
Acidified copper chloride.
B
Acidified copper sulphate.
C
Potassium chloride.
D
Sodium sulphate.
3
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Solder is an alloy of
A
Cu and Sn.
B
Fe and Zn.
C
Pb and Sn.
D
Ag and Zn.
4
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements about dihydrogen (H2) is not correct?
A
H2 is lighter than air and insoluble in water.
B
H2 is inert at room temperature due to high H-H bond dissociation enthalpy.
C
H2 reacts with alkali metals at high temperature to yield metal hydrides.
D
A mixture of NO2 and H2 is known as Syngas.
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