1.

(A)In smelting, roasted ore is heated with powdered cokein presence of a flux. (R) Oxides are reduced to metalsby carbon or carbonmonoxide. Impuritiesare removed as slag.

Answer»

Both (A) and (R) are true and (R) is the CORRECT EXPLANATION of (A)
Both (A) and (R) are true and (R) is not the correct EXPLANATIONOF (A)
(A) is true but (R) is false
Both (A) and (R) are false

Answer :A


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