Question

An ore on treatment with dilute hcl gives smell like rotten eggs

Answer 1

So what is the question here? Pls be precise.

Answer 2

This is a sulphide ore because sulphide ore ore reaction with HCl evolves gas namely H2S which is also called hydrogen sulphide and smells like rotten eggs

metals can be obtained from this or by firstly replying roasting method on this and then reducing it by carbon

Hope it helps