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Question

Carbon and silicon belong to the 14th group. The maximum coordination number of carbon in commonly occurring compounds is 4, whereas that of silicon is 6. This is due to:

A
the availability of low energy d-orbitals in silicon
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B
large size of silicon
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C
more electropositive nature of silicon
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D
both (b) & (c)
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Solution

The correct option is A the availability of low energy d-orbitals in silicon

Silicon has a coordination number of six owing to the presence of low energy d-orbitals which can also participate in bonding.

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