Question

What is a displacement reaction ? What happens when aluminium is dipped in copper sulphate solution ?

Answer 1

Answer:

displacement reaction is a reaction in which a more reactive metal or non-metal displaces a less reactive metal or non-metal from its salt solution.

when aluminium is dripped in coppet sulphate solution aluminium being more reactive than copper displaces it from its salt solution. the reaction involved is:-

2Al+3cuso4=Al2(So4)3 +3 cu.

Answer 2

a displacement reaction is a reaction in which a high reactive metal dispalces a low reactive metal from it's aqueous salt solution.

the general equation is:

A + B(salt) (aq) →A(salt) +B

here A is a highly reactive metal when comparison to B. the reactivity is defined fora element on basis of the reactivity series.

the above explained is the single displacement reax. it can be double also but u asked for displacement only so I am not explaining.

so the reaxn of aluminum dipped in copper sulphate solution analysis can be done as taking A as aluminum and B as copper sulphate. here salt is sulphate salt of copper.

Al + CuSo4 → Al2(So4)3 + Cu.

I have also added a picture of reactivity series chart hope it helps u in further questions. in that potassium is most reactive. and Platinum is least reactive.