Question

Activity 1.5
Take about 2 g ferrous sulphate crystals
in a dry boiling tube.
Note the colour of the ferrous sulphate
crystals.
Heat the boiling tube over the flame of
a burner or spirit lamp as shown in
Fig. 1.4.
Observe the colour of the crystals after
heating.



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Answer 1

Explanation:

c we have taken 2 gram of ferrous sulphate crystals in a dry boiling tube it means the colour of ferrous sulphate crystals is green when start boiling over the flame of a burner it starts to decompose hence it is decomposition reaction and and the ferrous sulphate crystals decompose into ferrous oxide and Sulphur dioxide and the colour of ferrous sulphate oxide turns to reddish Brown

Answer 2

Answer:

On heating it looses water molecules and becomes anhydrous ferrous sulphate . 2. Colour changes from light green to white . Ferrous sulphate crystals which are in green colour decomposes to give Ferric oxide , sulphur dioxide and sulphur trioxide gas.

Explanation:

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