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 of the following molecules may have a dipole movement?

A. N<sub>2</sub>
B. CH<sub>4</sub>
C. BeF<sub>2</sub>
D. H<sub>2</sub>O
Answer» E.
2.

Resonance does stabilize the molecule.

A. False
B. True
Answer» C.
3.

All the __________ species(molecules and ions) have the same bond order.

A. isotopic
B. isoelectronic
C. isobaric
D. isoneutronic
Answer» C. isobaric
4.

What is the bond order of CO?

A. 3
B. 2
C. 1
D. 4
Answer» B. 2
5.

The bond enthalpy of H2O and OH are 502 KJ mol-1 and 427 KKJ mol-1. Then what is the average bond enthalpy?

A. 502 KJ mol<sup>-1</sup>
B. 464.5 KJ mol<sup>-1</sup>
C. 427 KJ mol<sup>-1</sup>
D. 75 KJ mol<sup>-1</sup>
Answer» C. 427 KJ mol<sup>-1</sup>
6.

Strength of the bond between the two atoms can be known from bond dissociation enthalpy.

A. True
B. False
Answer» B. False
7.

The bond angle between the hydrogen atoms is _________

A. 104.5
B. 104
C. 105.4
D. 105
Answer» B. 104
8.

What are the units of measuring the bond angle?

A. meters
B. kilograms
C. degree
D. mole
Answer» D. mole
9.

The covalent radius in a chlorine molecule and van der Waal s radius between chlorine molecules respectively can be ________ & _________

A. 99pm, 198pm
B. 198pm, 99pm
C. 198pm, 198pm
D. 99pm, 99m
Answer» B. 198pm, 99pm
10.

Which of the following cannot be used to measure bond lengths?

A. Spectroscopy
B. X-ray diffraction
C. Electron diffraction
D. Young s Double-slit method
Answer» E.