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Octet Rule

The inter nuc...

Question

The inter nuclear distance in $H_{2}$ and $C l_{2}$ molecules are $74$ and $198$ pm. respectively. The bond length of $H C l$ may be:

A

136 p m

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B

272 p m

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C

135.919 p m

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D

271.919 p m

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Solution

The correct option is B $136 p m$
$r_{H_{2}} = \frac{74}{2} = 37 p m$
$r_{C l_{2}} = \frac{198}{2} = 99 p m$
bond length $= 37 + 99 = 136 p m$

Option A is the correct answer.

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