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Valence Bond Theory MCQs
1. Which type of bond is present between hydrogens in hydrogen molecule?
a) Sigma bond
b) Pi bond
c) Ionic bond
d) Metallic bond
Answer: Sigma bond
2. The pi-bond involves __________
a) axial overlapping
b) side-wise overlapping
c) end to end type of overlapping
d) head-on overlapping
Answer: side-wise overlapping
3. A pi bond is stronger than a sigma bond.
4. A __________ overlap doesn’t result in the formation of a bond.
5. A positive overlap is same as ________
a) out-phase overlap
b) negative overlap
c) zero overlap
d) in-phase overlap
Answer: in-phase overlap
6. Valence bond theory explains the overlapping of atomic orbitals.
7. Which of the following is not a homonuclear diatomic molecule?
8. What is the electronic configuration of carbon in it’s excited state?
9. The bond enthalpy of ___________ molecule is 435.8 kJ mol-1.
10. The strength of covalent ___________ extent of overlapping of orbitals.
a) may be or may not be related
b) is independent on
c) is dependent on
d) is not related to
Answer: is dependent on
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Categories: Chemical Bonding and Molecular Structure