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A + B hArrC + D. If finally the concentr...

`A + B hArrC + D`. If finally the concentrations of A an d B are both equal but at equilibrium concentration of D will be twice of that of A then what will be the equilibrium constant of reaction.

A

`(4)/(9)`

B

`(9)/(4)`

C

`(1)/(9)`

D

4

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The correct Answer is:
D
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