Answer:
(a) Changes observed
(i) Colour of the solution in the beaker changes from blue to green.
(ii) A brown coloured deposit is found on the surface of the iron nail
(b) Nature of changes
These changes are chemical changes as the new substances are formed in the form of iron sulphate and copper.
(c) Word equation for the above reaction
Copper sulphate(blue) + Iron → Iron sulphate(Green) + copper
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Answer:
(a) Changes observed
(i) Colour of the solution in the beaker changes from blue to green.
(ii) A brown coloured deposit is found on the surface of the iron nail
(b) Nature of changes
These changes are chemical changes as the new substances are formed in the form of iron sulphate and copper.
(c) Word equation for the above reaction
Copper sulphate(blue) + Iron → Iron sulphate(Green) + copper