Which of the following statements is/are correct?A. Froth floatation can also be used for non sulphide ores having sulphide impurities, and the ore is recovered by using suitable activator.B. In the leaching of `Ag_(2)S` with NaCN, a stream of air is also passed because of reversible nautre of reaction between `Ag_(2)S and NaCN`C. In hydrometallurgy, Zn is used as an oxidizing agent in the purification of Ag from `[Ag(CN)_(2)]^(-)`D. Roasting can convert sulphide into oxide or sulphate and apart of sulphide mau also act as a reducing agent

Which of the following statements is/are correct?A. Froth floatation c

1.	Which of the following statements is/are correct?A. Froth floatation can also be used for non sulphide ores having sulphide impurities, and the ore is recovered by using suitable activator.B. In the leaching of `Ag_(2)S` with NaCN, a stream of air is also passed because of reversible nautre of reaction between `Ag_(2)S and NaCN`C. In hydrometallurgy, Zn is used as an oxidizing agent in the purification of Ag from `[Ag(CN)_(2)]^(-)`D. Roasting can convert sulphide into oxide or sulphate and apart of sulphide mau also act as a reducing agent
Answer» Correct Answer - A,B,D

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