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Equilibrium concentration of HI, I2 and ...

Equilibrium concentration of `HI, I_2 and H_2` are 0.7, 0.1 and 0.1 M respectively.The equilibrium constant for the reaction,
`I_2 + H_2 ⇌ 2HI` is :

A

0.36

B

36

C

49

D

0.49

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The correct Answer is:
C
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