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Chemistry-Chemical Equilibrium

NEET Chemistry Chemical Equilibrium MCQ Question

Type: MCQ-diagram based-Easy-Class 11

In the diagram shown above, which graph best represents the change in concentration of H2 as the reaction H2(g) + I2(g) → 2HI(g) proceeds to equilibrium?

Question diagram
A

Graph A shows a decrease in concentration of H2 until it levels off.

B

Graph B shows a constant concentration of H2 throughout the reaction.

C

Graph C shows an increase in concentration of H2 until it levels off.

D

Graph D shows a rapid increase in concentration of H2 followed by a slow decrease.

Correct Answer

Option A

Detailed Explanation

As the reaction proceeds towards equilibrium, the concentration of H2 decreases and eventually levels off when equilibrium is reached, as described in the NCERT context.

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