Question

pls answer alll the question in photo​

Answer 1

8.   (a) Amit have immersed a rod of iron (Fe) . Reddish brown color wil be observed on the rod

(b) it is a displacement reaction

           Fe +  CuSO4 =  FeSO4 + Cu

9.  in test tube B

10.   the observations of group d is correct because the color of copper sulphate solutuon is blue and after reaction the color of solution becomes green  and a brown coating is seen on iron nail