The hardest material just prior to diamond in Mhos scale is_________________?
(A) Topaz
(B) Carborundum
(C) Corundum
(D) Calcite
Share this... |
![]() Facebook
|
![]() Twitter
|
![]() Linkedin
|
![]() Whatsapp
|
Your email address will not be published. Required fields are marked *