Question

The following observations were made by a student on treating four metals P, Q, R and S with the given salt solutions:​

Answer 1

Answer:

Four metals A, B, C and D are in turn added to the following solutions one by one. The observations made are tabulated below.

Metal Iron (II) sulphate Copper (II) sulphate Zinc sulphate Silver nitrate

A No reaction Displacement - -

B Displacement - No reaction -

C No reaction No reaction No reaction Displacement

D No reaction No reaction