Question

PbS can be separated from ZnS by electrostatic separation method. The property on which this method is based on, is

• A. PbS is a good conductor and ZnS is a poor conductor of electricity
• B. PbS is a bad conductor and ZnS is a good conductor of electricity
• C. Both PbS and ZnS are good conductors
• D. Both PbS and ZnS are bad conductors.

Answer 1

The correct option is A PbS is a good conductor and ZnS is a poor conductor of electricity

In electrostatic method, one component should be good conductor and one should be poor or non conductor of electricity.

Here PbS is a good conductor and ZnS is a poor conductor of electricity.

So, option A is correct.