

MCQOPTIONS
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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. | |