Explore topic-wise MCQs in Chemistry.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

The voltage of the electrochemical cell depends on the distance between the two electrodes.

A. True
B. False
Answer» B. False
Discussion
2.

What are the two electrodes used in Daniell cell?

A. Pt and Cu
B. Al and Zn
C. Al and Pt
D. Zn and Cu
Answer» E.
Discussion
3.

What is the electrolyte used in the electroplating of gold?

A. Molten gold
B. [AgCN<sub>2</sub>]<sup> </sup>
C. AuCN
D. AuCl<sub>3</sub>
Answer» D. AuCl<sub>3</sub>
Discussion
4.

In electroplating, the metal is dissolved from the cathode and plated on the anode.

A. True
B. False
Answer» C.
Discussion
5.

What is the product formed at the cathode in the electrolysis of aqueous CuSO4?

A. Copper metal
B. Oxygen gas
C. Hydrogen gas
D. Sulphur
Answer» B. Oxygen gas
Discussion
6.

What is the product formed at the cathode in the electrolysis of aqueous Na2SO4?

A. Sodium metal
B. Oxygen gas
C. Hydrogen gas
D. Sulphur
Answer» D. Sulphur
Discussion
7.

What is the product formed at the cathode in the electrolysis of molten NaCl?

A. Chlorine gas
B. Sodium metal
C. Hydrogen gas
D. Oxygen gas
Answer» C. Hydrogen gas
Discussion
8.

What is the preferred electrode when it is not allowed to take part in the chemical reaction?

A. Gold
B. Silver
C. Copper
D. Graphite
Answer» E.
Discussion
9.

What is the composition of aqua regia?

A. 1:3 of HCl and HNO<sub>3</sub>
B. 1:3 of HNO<sub>3</sub> and HCl
C. 1:3 of HCl and H<sub>2</sub>SO<sub>4</sub>
D. 1:3 of H<sub>2</sub>SO<sub>4</sub> and HCl
Answer» C. 1:3 of HCl and H<sub>2</sub>SO<sub>4</sub>
Discussion
10.

The electrolyte in electrolysis is always in molten or liquid state.

A. True
B. False
Answer» B. False
Discussion