What happen when:  (a). `CO_2` gas is passed through aqueous solution of `Na_2CrO_4`.  (b). Ammonium
Channel: Doubtnut
Date: 26/07/2020

What happen when:  (a). `CO_2` gas is passed through aqueous solution of `Na_2CrO_4`.  (b). Ammonium dichromate is heated strongly:  (c). Two gases A and B turns acidified `K_2Cr_2O_7` green,. When these gases are passed through water simultaneously, solution turns turbid yellow. What are the gases `A` and `B`?