Question

what happened in the displacement reaction and give the reason behind the colour change
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Answer 1

Answer:

displacement reaction means that to displaced any element by reactivity series

Explanation:

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Answer 2

Answer:

In the displacement reaction, the more reactive metal displace the less reactive metal from its solution .

Example-- zinc is more reactive metal than cu .

so,zn will displays cu from cuso4 solution and blue colour of cuso4 will disappear.