Upon heating KClO3 in the presence of catalytic amount of MnO2, a gas W is formed. Excess amount of W reacts with white phosphorus to give X. The reaction of X with HNO3 gives Y and Z.
(1) W and X are, respectively
(A) O3 and P4O6
(B) O2 and P4O6
(C) O2 and P4O10
(D) O3 and P4O10
(2) Y and Z are, respectively
(A) N2O3 and H3PO4
(B) N2O5 and HPO3
(C) N2O4 and HPO3
(D) N2O4 and H3PO3