Question

What type of chemical reaction is formed when crystals of ferrous sulphate is strongly heated??

Answer 1

Answer:-

Decomposition reaction.

Explanation :-

Decomposition reaction :- The reaction in which a single reactants breaks in to two or more simpler products is called decomposition reaction.

When Ferrous sulphate is strongly heated .First, it's water of crystallization gets removed.

Then, the ferrous sulphate gets decomposed in to ferric oxide, sulphur dioxide and sulphur dioxide.

The pungent smell of sulphur dioxide is released when the ferrous sulphate is heated.

The green colour of ferrous sulphate gets change in to dull red brown colour.

The reaction can be written as following:-

$FeSO_4 . 7H_2O + \delta \rightarrow FeSO_4 + 7H_2O$

$FeSO_4 + \delta \rightarrow Fe_2O_3 + SO_2 + SO_3$

where delta is heat energy.

Answer 2

Answer:

Decomposition Reaction

Explanation:

Decomposition Reaction:

Decomposition is the breaking up of a single compound into two or more simpler products. Energy is needed to break bounds.

Example:

Copper carbonate ---------> Copper oxide + carbon dioxide.

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When Ferrous sulphate is on heating ferrous sulphate crystals lose water and anhydrous ferrous sulphate (FeSO4) is formed.

Then,

When Ferrous sulphate is heated. First of all, it's water of crystallization gets loose.

When the ferrous sulphate is heated,the pungent smell of sulphur dioxide is released.

The Green colour of ferrous sulphate turn in to dull red brown colour.

Reaction:

$\implies\ FeSO_4.7H_2O\ +\delta \rightarrow FsSO_4\ +7H_2O$

$\implies\ FeSO_4 + \delta \rightarrow Fe_2O_3\ + SO_2 + SO_3$

Note:

In reaction delta is heat energy.