Give the number of characteristic bond(s) found in the various oxy-acids of phosporous as given below.
(a) Number of `P-O-P` bond(s) in tricyclometaphosphoric acid.
(b) Number of `P-P` bond(s) in hypophosphoric acid
(c) Number of `P-OH` bond(s) in pyrophosphoric acid.
(d) Number of `P-H` bond(s) in hypophosphorous acid.

Answer

3,1,2,4

Explanation

(a) 3 (b) 1, (c) 2 (d) 4