When ferrous sulphate crystals are heated in a test tube, we observe that :

When ferrous sulphate crystals are heated in a test tube, we observe that :
  1. A colourless gas with no smell is evolved.
  2. A brown gas is evolved.
  3. The green colour of the salt fades and a gas with the smell of burning sulphur is evolved.
  4. The green colour of the salt fades and no gas is evolved.

Solution

The green colour of the salt fades and a gas with the smell of burning sulphur is evolved.

Asked in: CBSE

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