1.

Hybridisation is the chemists attempt to explain the observed molecular shape by constructing hybridised atomic orbitals with the appropriate inter orbital angles. The molecule for which d eviation form normal bond angle is observed, VSEPR theory suggest electron pair repulsive interaction (lp - lp gt lp - bp - bp). While from hybridisation point of view that is departure from normal hybridisation beacuse the angle between any equivalent hybrid orbitals determine the fraction of s and p character of the hybrid and vice - versa. An element 'A' has outer shell electronic configuration is 5s^(2)5p^(6). If A form covalent compoun AF_(2) with fluorine. The orbitals used by 'A' for bonding are

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d-orbitals
p-orbitals
SP-hybridised ORBITAL
`sp^(3)d` HYBRID orbital

Solution :


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