Question

pls help me ques 8 and 9

Answer 1

$P ---------Iron(Fe) \:$

$\: Q -------: > CuSO _{4}$

$R--------- \: FeSO_{4}$

$S--- \: > \: \: Fe_{2}O _{3} \: (rust)$

Answer 2

HEY!!!!!!.

8->P is iron

Q is CuSO4

R is FeSO4

S is the layer of copper on iron

9->a) (III) Zinc or chromium

b)IV) drying of a cotton cloth

HOPE IT HELPS YOU!!!.....