A student took four test tubes I,II,III and IV containing aluminium sulphate, copper sulphate
Channel: Doubtnut
Date: 26/01/2020

A student took four test tubes I,II,III and IV containing aluminium sulphate, copper sulphate, ferrous sulphate and zinc sulphate solutions respectively. He placed iron strips in each one of them. after some time he found a brown deposite formed in test -tube marked: