NEET Chemistry Chemical Equilibrium Assertion Reason Question
Assertion (A): At 298 K, the equilibrium constant Kc for the reaction N2(g) + O2(g) ⇌ 2NO(g) is very small, indicating that the reaction hardly proceeds to form products.
Reason (R): A reaction with a very small Kc value implies that the forward reaction is non-spontaneous and results in only a minute quantity of product formation.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, R is false.
A is false.
Correct Answer
Detailed Explanation
The NCERT context states that a very small Kc value, such as 4.8 × 10^-31 for N2(g) + O2(g) ⇌ 2NO(g), indicates the reaction proceeds very little towards product formation. This aligns with the assertion and reason.
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