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Bond Parameters MCQs
1. The bond angle between the hydrogen atoms is _________
a) 104.5°
b) 104°
c) 105.4°
d) 105°
Answer: a
2. Strength of the bond between the two atoms can be known from bond dissociation enthalpy.
a) True
b) False
Answer: a
3. 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-1
b) 464.5 KJ mol-1
c) 427 KJ mol-1
d) 75 KJ mol-1
Answer: b
4. What is the bond order of CO?
a) 3
b) 2
c) 1
d) 4
Answer: a
5. All the __________ species(molecules and ions) have the same bond order.
a) isotopic
b) isoelectronic
c) isobaric
d) isoneutronic
Answer: b
6. Resonance does stabilize the molecule.
a) False
b) True
Answer: b
7. Which of the following molecules may have a dipole movement?
a) N2
b) CH4
c) BeF2
d) H2O
Answer: d
8. 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: d
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: a
10. What are the units of measuring the bond angle?
a) meters
b) kilograms
c) degree
d) mole
Answer: c
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Categories: Chemical Bonding and Molecular Structure
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