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Suggest reasons why the B–F bond lengths...

Suggest reasons why the B–F bond lengths in `BF_(3)` (130 pm) and `BF_(4 )^(– )`(143 pm) differ.

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VMC MODULES ENGLISH-p-BLOCK ELEMENTS-1-JEE Advanced Archive
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  3. Moderate electrical conductivity is shown by

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  7. Graphite is used as a lubricant in machinery.

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  9. Each entry in column X is in some way related to the entries in column...

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  10. Write the balanced equation for the preparation of crystalline silicon...

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  11. The hydrolysis of alkyl substituted chlorosilanes gives .

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  12. The tendency for catenation is much higher for C than for Si.

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  21. A liquid which is permanently supercooled is frequently called a ……….....

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