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Characteristics of Equilibrium Constant

The value of ...

Question

The value of $K_{c}$ for the dissociation reaction $H_{2} (g) ⇌ 2 H (g)$ is $2.1 \times 10^{- 42}$ . This equilibrium mixture contains mainly.

A

H_{2} (g)

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B

H (g)

atom

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C

1 : 1

molar mixture of

H_{2}

and

H

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D

1 : 2

molar mixture of

H_{2}

and

H

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Solution

The correct option is B $H_{2} (g)$
Since, $K_{c}$ is very small, hence $[H_{2}]$ is predominant.

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