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Assertion (A) SF(6) cannot be hydrolysed...

Assertion (A) `SF_(6)` cannot be hydrolysed but `SF_(4)` can be.
Reason (R ) Six F-atoms in `SF_(6)` prevent the attack of `H_(2)O` on sulohur atom of `SF_(6)`.

A

If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.

B

If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion `&` Reason are False.

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The correct Answer is:
A
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Assertion:- SF_(6) cannot be hydrolysed but SF_(4) can be. Reason:- Six F atoms in SF_(6) prevent the attack of H_(2)O on sulphur atom of SF_(6)

Assertion SiF_(6)^(2-) anion exists but CF_(6)^(2-) does not Reasoning Si atom vacnat d-orbital while C-atom has not .

Give reasons for the following observations : Why SF_(4) undergoes hydrolysis but not SF_(6) ? Or SF_(6) is inert towards hydroysis. SF_(6) is much less reactive than SF_(4) . Or (i) SF_(4) is easily hydrolysed whereas SF_(6) is not easily hydrolysed. (ii) Sulpher exhibits greater tendency for calenation than selenium. (iii) Sulpher has a higher tendency for catenation than oxygen.

Write down the hybridization of central atom and shape of SF_(4).

What is the valency of : sulphur in SF_6

SF_(2),SF_(4) and SF_(6) have the hybridisation at sulphur atom respectively as .

SF_(2),SF_(4) and SF_(6) have the hybridisation at sulphur atom respectively as .

Assertion Sulfur forms SF_(6) and also SCI_(6) Reasoning Sulfur has vacant d-orbitals .

Draw the structure of the following molecules/ions SF_(6)

Assertion : H-bonding occurs in H_(2)O due to larger size of O-atom. Reason : The size of O-atom is larger than H-atom.

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