Explain the following.
Diamond is an abrasive

Explain the following and give reasons : (a) diamond is hard, but graphite is soft , (b) diamond is insulator, but graphite is a conductor.

Give reasons: Diamond is used as an abrasive

Give reason Diamond is used as an abrasive.

State as why : Diamond is used as abrasive.

Give reasons Diamond is used as an abrasive.

Give reasons Diamond is used as an abrasive.

Explain the brilliance of a diamond.