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Preparation and Properties of Beryllium Hydride

Assertion :St...

Question

Assertion :Statement $-$ 1 : Between $S i C l_{4}$ and $C C l_{4}$ only $S i C l_{4}$ reacts with water at room temperature. Reason: Statement $-$ 2 : $S i C l_{4}$ is ionic and $C C l_{4}$ is covalent.

Statement

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1 is true, Statement

-

2 is true and Statement

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2 is correct explanation for Statement

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Statement

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1 is true, Statement

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2 is true and Statement

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2 is NOT the correct explanation for Statement

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Statement

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1 is true, Statement

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2 is false.

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Statement

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1 is false, Statement

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2 is true.

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Solution

The correct option is C Statement $-$ 1 is true, Statement $-$ 2 is false.
Reaction:
$S i C l_{4} + 2 H_{2} O \to S i O_{2} + 4 H C l$
In $S i C l_{4}$ , Silicon has unoccupied 3d orbitals which are able to accept electron pairs from the oxygen atoms of water to form bonds. Since there are no 2d orbitals, this cannot happen with tetrachloromethane.

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Assertion :Statement − 1 : Between SiCl4 and CCl4 only SiCl4 reacts with water at room temperature. Reason: Statement − 2 : SiCl4 is ionic and CCl4 is covalent.

Assertion :Statement $-$ 1 : Between $S i C l_{4}$ and $C C l_{4}$ only $S i C l_{4}$ reacts with water at room temperature. Reason: Statement $-$ 2 : $S i C l_{4}$ is ionic and $C C l_{4}$ is covalent.