Question

If the formula of a metallic oxide is M2O3, what will be the formula of the

sulphate of the metal M​

Answer 1

Answer:

In this question we find that the valency of M is +3 and O is -2.

As we know that Sulphide has valency -2 and if we will replace oxide from M then we will find that formula of M with sulphide becomes M2S3.