Question

Assignment 2
2. 2g of ferrous sulphate crystals are heated in
a boiling tube.
(i) State the colour of ferrous sulphate crystals
both before heating and after heating.
(ii) Name the gases produced during heating.
(iii) Write the balanced chemical equation for
the reaction.​

Answer 1

Answer:

The colour of the ferrous sulphate crystals is green before heating and changes to brown after heating. The colour of the crystals changes due to the formation of ferric oxide. (ii) During heating sulphur dioxide (SO2) and sulphur trioxide (SO3) are produced.

Explanation:

On heating it looses water molecules and becomes anhydrous ferrous sulphate . 2. Colour changes from light green to white . Ferrous sulphate crystals which are in green colour decomposes to give Ferric oxide , sulphur dioxide and sulphur trioxide gas