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question mark

Give two examples each for chemical reactions which are characterised by -
(i) Change in colour
(ii) Change in state
Write the the chemical equations for each of the example.

Sona Sheril Antony , 11 Years ago
Grade 11
anser 1 Answers
Ruchi Shaw
Dear student ,
Your answer is as follows :

1) Change in colour : Rusting of iron results in the change of iron from silver to reddish brown.
4Fe(III) + 3O2 = 2Fe2(III)O3

2) Change in state : Changing of (solid) ice into (liquid) water upon heating.
Ice (solid) = water (liquid)
Last Activity: 11 Years ago
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