Attainment of the equilibrium  A(g)⇌2C(g)+B(g)  gave the following graph. Find the correct option.(%  dissociation = fraction dissociated x 100)

A(s)⇌2C(s)+B(g) at t=0, [A]=10M from graph, [A]eq.=10(1-α)=8 , [C]=10(2α)=4, [B]=10 α=2 kc=[C]2[B]1[A]1=4×4×28 =4( mol/L)2Hence option(2) is correct.