1.

An ore is subjected to roasting on doing so, agus A is liberate and the metal is obtained in state. Il gas turns acidified dichromate paper green the one is

Answer»

Casiterite
Copper glance
Malachite
Sphalerite

Solution :`SO_(2)` GAS turns ACIDIFIED DICHROMATE PAPER into green colour.
`:.` It should be sulphide ore.


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