For which of the following reactions, the degree of dissociation (α) and equilibrium constant (Kp) are related as kp=4α2p1-α2?

For the decomposition reactions of the typeGivenDegree of dissociation of 'A' = αEquilibrium pressure = PTotal moles at equilibrium = 1 - α + 2α = 1 + αMole fraction of A at equilibrium, Similarly Option 1 matches