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What are the various condition for the c...

What are the various condition for the combination of atomic orbitals?

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The various conditions for combinations of atomic orbitals are as follows:
(i) The combining atomic orbitals must have the same or nearly the same energy.
(ii) The combining atomic orbitals must have the same symmetry about the molecular axis.
(iii) The cobining atomic orbits must overlap to the maximum extent.
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OMEGA PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE -MULTIPLE CHOICE QUESTIONS
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  7. Which of the following is diamagnetic?

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  8. In which one of the following sp^2 hybridisation?

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