Question

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Answer 1

Answer:

1. when concentrated sulphuric acid is poured over the copper plate, it librates hydrogen gas.

2.Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + Cu (s).

Explanation:

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Answer 2

Answer:

a)When dilute sulphuric acid poured on a copper plate, the metal does not react with sulphuric acid. But when concentrated sulphuric acid is poured over the copper plate, it librates hydrogen gas.

Equation:

Cu+2H

2

SO

4

(conc)→CuSO

4

+SO

2

+2H

2

O

b)Iron displaces copper from the sulphate solution leading to formation of ferrous sulphate and copper. ... This is a displacement reaction in which a more reactive metal displaces a less reactive metal from its salt solution.

Equation:

Fe+CuSO

4

→FeSO

4

+Cu

I hope it helps you

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