Metals and Non-metals
10th CBSE Science Metals and Non-metals
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 an iron strip in each of them.
In which test tube he found a brown deposite.
test tube (II), because Fe is more reactive than copper but less reactive than
Al and Zn.