The correct statement(s) regarding (i) HClO, (ii) `HClO_(2)`, (iii) `HClO_(3)` and (iv) `HClO_(4)`, is (are)

Options

A. The number of Cl = O bonds in (ii) and (iii) together is two
B. The total number of lone pairs of electrons on Cl in (ii) and (iii) together is three
C. The hybridization of Cl in (iv) as `sp^(3)`
D. Amongst (i) to (iv), the strongest acid is (i)

Answer

B, C

Explanation

(a) Statement (a) is wrong because the number of Cl = O bonds in (ii) and (iii) is 1 + 2 = 3.
(b) Statement (b) is correct because the lone pairs of electrons on Cl in (ii) and (iii) is 2 + 1 = 3.
(c) Statement (c) is also correct since hybridization of Cl in (iv) is `sp^(3)`. In fact, it is `sp^(3)` in all the four acids.
(d) Statement (d) is wrong because strongest acid is (iv) and not (i).