1.

Statement-1: Silica is added as a flux in reverberatory furnance, in the extraction of copper from copper pyrites. Statement-2: Silica decreases the melting point of the ore and remove the impurity of lead sulphide as PbSiO_(3)

Answer»

Statement -1 is TRUE, Statement-2 are true and Statement-2 is the CORRECT explanation of Statement -1
Statement -1 is true, Statement-2 are true and Statement-2 is not a correct explanation of Statement -1
Statement-1 is true but Statement -2 is FALSE
Statement-1 is false but Statement -2 is true

Answer :c


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