1.

For a reaction C(s)+CO_(2)(g)hArr2CO(g)

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The equlibrium shifts in backward direction if more of CO is added
The equilibrium shifts in backward direction if more of CO is added
The equlibrium shifts in forward direction if more of corbon is added
On adding carbon, the equlibrium is not disturbed

SOLUTION :`Q_(p)=(P_(CO)^(2))/(P_(CO_(2))),Q_(C)=([CO]^(2))/([CO_(2)])`
When more of `CO_(2)` is added `Q_(p)` DECREASES, hence in order to reach equlibrium, SYSTEM moves in forward direction, hence choice (a) is correct.
When more of CO is added, `Q_(p)` increases and therefore to reach equlibrium, system moves in backward DIRECTIN, so choice (b) is correct.
Since active mass of colids is 1, hence changing the concentrations of carbon does not change Q. Hence adding carbon does not shift the equlibrium, (c) is incorrect. Whereas (d) is correct.


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