Question

what happened when green coloured crystals are heated?​

Answer 1

Explanation:

Answer: When a green coloured crystal is heated reddish brown solid forms with the release of pungent gas; hence here the green color substance must be ferrous sulphate and when it is heated it forms ferric oxide which is red in color with Sulphur trioxide and Sulphur dioxide gas.

Answer 2

Explanation:

when green colour crystals are heated reddish brown solid firms with the release of pungent gas