#halogen compounds

[jeeadv2015chem]

Question on Halogen Compounds

The correct statement(s) regarding, (i) HClO, (ii) HClO2, (iii) HClO3 and (iv) HClO4 is (are) A) The number of Cl = O bonds is (ii) and (iii) together is two B) The number of lone pairs of electrons on Cl in (ii) and (iii) together is three C) The hybridization of Cl in (iv) is sp3 D) Amongst (i) to (iv), the strongest acid is (i)