Explain the following:  (a) In the preparation of `HI` from `KI` , phosphoric acid is preferred to
Channel: Doubtnut
Date: 2020-07-26

Explain the following:  (a) In the preparation of `HI` from `KI` , phosphoric acid is preferred to sulphuric acid.  (b) Boiling point of `HCl` is lower than `HF`.  (c ) Bleaching powder loses its bleaching property when kept in an open bottle for a long time.