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Class 11 Chemistry Practice Test: Chemical Bonding and Molecular Structure - Valence Bond Theory
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Avg score: 87% • Most missed: “A __________ overlap doesn’t result in the formation of a bond.”

Valence bond theory is one of the two basic theories, along with molecular orbital theory, that were developed to use the methods of quantum mechanics to explain chemical bonding.

It focuses on how the atomic orbitals of the dissociated atoms combine to give individual chemical bonds when a molecule is formed. In contrast, molecular orbital theory has orbitals that cover the whole molecule.

Class 11 Chemistry Practice Test: Chemical Bonding and Molecular Structure - Valence Bond Theory
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10 Questions

1. Which type of bond is present between hydrogens in hydrogen molecule?
2. A pi bond is stronger than a sigma bond.
3. The strength of covalent ___________ extent of overlapping of orbitals.
4. Which type of bond is present between hydrogens in hydrogen molecule?
5. A pi bond is stronger than a sigma bond.
6. The bond enthalpy of ___________ molecule is 435.8 kJ mol-1.
7. A __________ overlap doesn’t result in the formation of a bond.
8. What is the electronic configuration of carbon in it’s excited state?
9. The pi-bond involves __________
10. Which of the following is not a homonuclear diatomic molecule?

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