When an inorganic compound reacts with `SO_2` in aqueous medium produces `(A). (A)` on reaction with
Channel: Doubtnut
Date: 02/08/2020

When an inorganic compound reacts with `SO_2` in aqueous medium produces `(A). (A)` on reaction with `Na_2 CO_3` gives the compound `(B)` which with sulphur gives a substance `(c)` used in photography. The compound `(c)` is.