One molecule of a binary acid contains two hydrogen atoms and a negative radical X. What will be the formula of the salts when it reacts with bases, like, `M(OH), M(OH)_2` and `M(OH)_3`? Explain with reasons.

Explanation

(i) Formula of the binary acid.
(ii) Valency ofX.
(iii) Valency of M in each case.
(iv) Derivation of the formulae of salts produced