Match the items of Column I with the items of Column II

contexto.130

3 years ago

Column I	Column II
(A) Sapphire	(1) Al2O3
(B) Sphalerite	(2) NaCN
(C) Depressant	(3) Co
(D) Corundum	(4) ZnS
	(5) Fe2O3

Column I	Column II
(A) Sapphire	(3) Co
(B) Sphalerite	(4) ZnS
(C) Depressant	(2) NaCN
(D) Corundum	(1) Al2O3