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.

What type of agent is PCl5 when it reacts with H2?

A. Reducing agent
B. Oxidising agent
C. Both reducing and oxidising
D. Neither reducing nor oxidising
Answer» C. Both reducing and oxidising
Discussion
2.

Which of the following is not formed on hydrolysis of PCl5?

A. POCl<sub>3</sub>
B. H<sub>3</sub>PO<sub>4</sub>
C. HCl
D. PCl<sub>3</sub>
Answer» E.
Discussion
3.

What is the liquid product formed on decomposition of PCl5?

A. Cl<sub>2</sub>
B. HCl
C. PCl<sub>3</sub>
D. No liquid product is formed
Answer» D. No liquid product is formed
Discussion
4.

How does PCl5 exist in its solid state?

A. [PCl<sub>4</sub>]<sup>+</sup>[PCl<sub>6</sub>]<sup> </sup>
B. [PCl<sub>3</sub>]<sup>2+</sup>[PCl<sub>7</sub>]<sup>2-</sup>
C. [PCl<sub>2</sub>]<sup>3+</sup>[PCl<sub>8</sub>]<sup>3-</sup>
D. [PCl<sub>5</sub>][PCl<sub>5</sub>]
Answer» B. [PCl<sub>3</sub>]<sup>2+</sup>[PCl<sub>7</sub>]<sup>2-</sup>
Discussion
5.

What is the hybridization of phosphorus in PCl5?

A. sp<sup>3</sup>
B. sp<sup>2</sup>
C. sp<sup>3</sup>d
D. sp<sup>3</sup>d<sup>2</sup>
Answer» D. sp<sup>3</sup>d<sup>2</sup>
Discussion
6.

Which of the following is most stable?

A. AsCl<sub>5</sub>
B. SbCl<sub>5</sub>
C. PCl<sub>5</sub>
D. BiCl<sub>5</sub>
Answer» D. BiCl<sub>5</sub>
Discussion
7.

Phosphorus trichloride does not react with Grignard reagents.

A. True
B. False
Answer» C.
Discussion
8.

Which of the following statement regarding PCl3 is false?

A. PCl<sub>3</sub> forms metal chlorides on heating with finely divided metals
B. PCl<sub>3</sub> does not react with organic compounds
C. PCl<sub>3</sub> is a colourless pungent smelling liquid
D. PCl<sub>3</sub> boils at 347 K
Answer» C. PCl<sub>3</sub> is a colourless pungent smelling liquid
Discussion
9.

Which of the following reacts with PCl3 to form PCl5?

A. O<sub>2</sub>
B. N<sub>2</sub>
C. S
D. Cl<sub>2</sub>
Answer» E.
Discussion
10.

Phosphorus trichloride reacts violently with water.

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