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The equilibrium constant for the reactio...

The equilibrium constant for the reaction,
`SO_3(g)hArr SO_2(g)+1/2O_2(g)` is `K_C=4.9xx10^(-2)` . The value of `K_C` for the reaction `2SO_2(g) + O_2 hArr 2SO_(3) (g)` will be :

A

416

B

`2.40 xx 10^(-3)`

C

`9.8 xx 10^(-2)`

D

`4.9 xx 10^(-2)`

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The correct Answer is:
A
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