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Standard XI
Chemistry
Equilibrium in Chemical Processes
Question

Consider the following graph and mark the correct statement.

A
The concentrations of $$H_2$$ and $$I_2$$ keep decreasing while concentration of HI keeps increasing with time.
B
Chemical equilibrium in the reaction, $$H_2 + I_2 \rightleftharpoons 2HI$$ can be attained from either directions.
C
Equilibrium can be obtained when $$H_2$$ and $$I_2$$ are mixed in an open vessel.
D
We can find out equilibrium concentration of $$H_2$$ and $$I_2$$ from the given graph.
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Solution
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Correct option is A. Chemical equilibrium in the reaction, $$H_2 + I_2 \rightleftharpoons 2HI$$ can be attained from either directions.
Equilibrium can be attained by either side of the reactions of equilibrium for the reaction, $$H_2 + I_2 \rightleftharpoons 2HI,$$ in a closed vessel. Once the equilibrium is attained there is no change in concentration.

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