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CBSE Class 10 Answered

Describe an activity to show the decomposition reaction of ferrous sulphate in the laboratory
Asked by ssharish8503 | 09 Mar, 2019, 02:59: PM
answered-by-expert Expert Answer

1. Take about 2 grams of ferrous sulphate crystals (green coloured) in a dry boiling tube.

2. Heat the boiling tube over a burner (by keeping the mouth of boiling tube away from face).

3. The green colour of ferrous sulphate crystals first changes to white and then a brown solid (ferric oxide) is formed.

4. A gas having  smell of burning sulphur comes out of the boiling tube.

2 FeSO subscript 4 subscript open parentheses straight s close parentheses end subscript end subscript space rightwards arrow with increment space space space space space space on top space space Fe subscript 2 straight O subscript 3 subscript open parentheses straight g close parentheses end subscript end subscript space space plus space SO subscript 3 subscript open parentheses straight g close parentheses end subscript space space plus space SO subscript 2 subscript open parentheses straight g close parentheses end subscript end subscript
Answered by Varsha | 10 Mar, 2019, 07:42: PM

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