1.

2g ferroussulphate crystal are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) Write the chemical equation of the reaction.

Answer»

Solution :(i) Before heating, it is pale green .
After heating it is brown or reddish brown.
TWO OBSERVATIONS are :
(a) Change in state and colour
(b) Evolution of gas.
(ii) Decomposition reaction.
(iii) `2FeSO_(4)(s) overset ("Heat")rarr Fe_(2)O_(3)(s)+SO_(2)G+SO_(3)(g)`


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