When a metal is to be extracted from its ore and the gangue associated – McqOptions

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1.	When a metal is to be extracted from its ore and the gangue associated with the ore is silica, then
A.	an acidic flux is needed
B.	a basic flux is needed
C.	both acidic and basic fluxes are needed
D.	Neither of them is needed
Answer» C. both acidic and basic fluxes are needed

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