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3 mole of reactant A and one mole of rea...

3 mole of reactant A and one mole of reactant B are mixed in a vessel of volume 1 litre . The reaction taking place is `A + B hArr 2 C` . If 1.5 mol of C is formed at equilibrium , the value of `K_(c)` is

A

`0.12`

B

`0.50`

C

`4.00`

D

`0.25`

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