Give example of chemical reaction change in colour
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Explanation:
when an iron nail is kept in cuso4 solution then the color of cuso4 changes from blue to green .
cuso4+fe=feso4+cu
(Blue) (Green )
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Answer:Pb(No3)2+KI=> PbI2+KNo3
Explanation:when lead nitrate react with ki then yellow precipitate(pbi2) is formed.thus, the colour of solutions change.
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