Question

2 g 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 chemical equation for the reaction.
CBSE Class X Science SA 2 (3 Marks)

Answer 1

1. pale green ( before heating)
colourless ( after heating)
2. SO2 nd SO3
3. Fe2SO4 = Fe2O3 + SO2 + SO3