Question

green colour hydrated metallic Salt on heating loses water of crystallization molecules and give a gas with suffocating smell identify the salt and write the chemical equation for the reaction​

Answer 1

Answer:

The light green coloured hydrated metallic salt is green vitriol which on heating loses water of crystallisation molecule and gives a suffocating/ pungent odour gas which is sulphur dioxide. ... The salt used is Green Vitriol and gas produced in this reaction is sulphur dioxide gas.

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Answer 2

Answer:

The salt is Ferrous Sulphate.

The suffocating smell is because of Sulphur Dioxide gas.

Balance equation --

2 FeSO4 ==> Fe2O3 + SO2 + SO3

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