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K(c) for A+BhArrC+D is 10 at 25^(@)C. If...

`K_(c)` for `A+BhArrC+D` is `10` at `25^(@)C`. If a container contains `1`, `2`, `3`, `4` `mol//litre` of `A`, `B`, `C` and `D` respectively at `25^(@)C`, the reaction shell proceed:

A

proceed from left to right

B

proceed from right to left

C

be at equilibrium

D

not occur

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The correct Answer is:
A
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