JEE Main 2026 (5 Apr, Shift 2) Chemistry Q56: Equilibrium

Question

The reaction $\mathrm{A(g)\rightleftharpoons B(g)+C(g)}$ was initiated with the amount 'a' of A(g). At equilibrium it is found that the amount of A(g) remaining is $(a-x)$ at a total pressure of p.
The equilibrium constant $K_p$ of the reaction can be calculated from the expression :

Accepted Answer

Option 2: $\frac{x^2}{a^2-x^2}	imes p$

Answer

$\frac{x^2}{a^2+x^2}	imes p$

Answer

$\frac{x^2}{a^2-x^2}	imes p$

Answer

$\frac{a+x^2}{x^2}	imes p$

Answer

$\frac{a^2-x^2}{x^2}	imes p$

JEE Main 5 April 2026, Shift 2, Chemistry Q56

Same idea in other shifts