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Question

Assertion :SiCl4 is easily hydrolised as compared to CCl4. Reason: Silicon can extend its coordination number beyond four.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Except CCl4 other tetrachlorides are easily hydrolysed by water because central atom can accomodate the lone pair of electron from oxygen atom of water whereas C does not have vacant d-orbitals to accomodate these lone pairs of electrons. Silicon can extend its coordination number beyond 4.

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