Question

3. Bhawna took a pale green substance A
in a test tube and heated it over the flame of
a burner. A brown coloured residue B was
formed along with the evolution of two
gases with burning smell of sulphur.
Identify A and B. Write the chemical
reaction involved.​

Answer 1

Answer:

Bhawna took a pale green substance A in a test tube and heated it over the flame of a burner. A brown coloured residue B was formed along with the evolution of two gases with burning smell of sulphur. ... Substance A is ferrous sulphate (FeSO4). Two gases, sulphur dioxide and sulphur trioxide are evolved.

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