Although meta phosphoric acid is written as a monomer,it exists as a polymer,`(HPO_(3))_(3)`. the number of P-0-P bonds in cyclic tri-meta phosphoric acid is
(A) zero
(B) Two
(C) Three
(D) Four

The number of P-O-P bonds in cyclotrimetaphosphoric acid, (HPO_(3))_(3) is

Asseration: Number of P-O-P bonds in cyclotrimetaphosphoric acid is 3 . Reason: Number of P=O bonds in cyclotrimetaphosphoric acid is three.

Cyclotrimeta phosphoric acid has total number of P=O & P-O bonds respectively

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.

The number of roots of the equation sqrt(x-2)(x^(2)-4x+3)=0 is (A) Three (B) Four (C) One (D) Two

(a) Why elemental phosphorous does not exist as P_2 like N_2 ? (b) NCl_3 gets easily hydrolysed, while NF_3 does not. Why ?

The following are some statements about oxyacids of VA group elements i) The salt of Nitric acid contains NO_(3) ion ii) The salt of phosphoric acid contains PO_(4)^(3-) ion iii) Salt of meta phosphoric acid contains H_(2)PO_(3)^(-) & HPO_(3)^(2-) ions The correct combination is

Assertion: - Metaphosphoric acid is highly unstable in monomer form and easily convert into trimer or ppolymer form. Reason:- 2p pi-3p pi bond between P and O atom of HPO_(3) is very weak . So tendency of polymerisation is high

The following are some statements about oxyacids of VA group elements I) The salt of nitric contains No_(3)^(-) ion II) The salt of phosphoric acid contains PO_(4)^(3-) ion III) Salts of meta phosphoricn acid contains HPO_(3)^(2-) ion The correct combination is