Hydrogen NDA Questions

NDA Chemistry

Hydrogen MCQ Questions


13.
Which of the following is a type of reaction in which hydrogen gas reacts with a metal to form a metal hydride?
A.
Combustion
B.
Oxidation
C.
Reduction
D.
None of these
😑 View Answer Rough Work Error
ANSWER :
C. Reduction
14.

Which of the following is a reducing agent in the reaction 2HCl + Mg → MgCl2 + H2?

A.

HCl

B.

Mg

C.

H2

D.

H2O

😑 View Answer Rough Work Error
ANSWER :

B. Mg

15.

Which of the following is the correct formula for sodium bicarbonate?

A.

NaCl

B.

NaOH

C.

NaHCO3

D.

Na2CO3

😑 View Answer Rough Work Error
ANSWER :

C. NaHCO3

16.
Which of the following is not a property of hydrogen fuel cells?
A.
They emit greenhouse gases
B.
They are efficient
C.
They produce electricity
D.
None of these
😑 View Answer Rough Work Error
ANSWER :
A. They emit greenhouse gases
17.
Hydrogen atom consisting of only one proton is called _____
A.
Chlorine
B.
Tritium
C.
Deuterium
D.
Protium
😑 View Answer Rough Work Error
ANSWER :
D. Protium
18.
Just like halogens, hydrogen also exists as _____ molecules and it combines with metals and non-metals to form covalent compounds.
A.
Triatomic
B.
Diatomic
C.
Monoatomic
D.
None of these
😑 View Answer Rough Work Error
ANSWER :
B. Diatomic