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.

Which compound is used in Ultra-violet calibration?

A. Hg<sub>2</sub>Cl<sub>2</sub>
B. HgCl<sub>2</sub>
C. K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>
D. KMnO<sub>4</sub>
Answer» D. KMnO<sub>4</sub>
Discussion
2.

Which compound forms double salt with sulphates of alkali metals?

A. Ferric oxide
B. Silver nitrate
C. Ferric chloride
D. Ferrous sulphate
Answer» E.
Discussion
3.

Which of the following tests does AgCl not answer?

A. Chromyl chloride test
B. Baeyer s reagent test
C. Alkaline test
D. Acidic test
Answer» B. Baeyer s reagent test
Discussion
4.

Which of the following metal is used as a thermometric liquid?

A. Iron
B. Copper
C. Mercury
D. Potassium
Answer» D. Potassium
Discussion
5.

Sc3+ is a paramagnetic ion.

A. True
B. False
Answer» C.
Discussion
6.

Which of the following is Baeyer sreagent?

A. Acidified KMnO<sub>4</sub>
B. Alkaline KMnO<sub>4</sub>
C. Acidified K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>
D. Aqueous KMnO<sub>4</sub>
Answer» C. Acidified K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>
Discussion
7.

Which of the following is amphoteric?

A. CrO
B. Cr<sub>2</sub>O<sub>3</sub>
C. CrO<sub>5</sub>
D. CrO<sub>3</sub>
Answer» C. CrO<sub>5</sub>
Discussion
8.

Mn has a maximum oxidation state of +6.

A. True
B. False
Answer» C.
Discussion
9.

What is the formula of hematite?

A. Fe<sub>3</sub>O<sub>4</sub>
B. FeSO<sub>4</sub>.7H<sub>2</sub>O
C. Fe<sub>2</sub>O<sub>3</sub>
D. FeCl<sub>3</sub>
Answer» D. FeCl<sub>3</sub>
Discussion
10.

What is the colour of KMnO4?

A. Green
B. Purple
C. Blue
D. Colourless
Answer» C. Blue
Discussion