Which impurity of manganese nodules is leached using H2SO4 as solvent at temperature of 77°F?(a) Cobalt(b) Copper(c) Nickel(d) IronThis question was addressed to me during an internship interview.I need to ask this question from Inorganic Chemical topic in portion Inorganic Chemical Industries of Chemical Technology

Which impurity of manganese nodules is leached using H2SO4 as solvent

1.	Which impurity of manganese nodules is leached using H2SO4 as solvent at temperature of 77°F?(a) Cobalt(b) Copper(c) Nickel(d) IronThis question was addressed to me during an internship interview.I need to ask this question from Inorganic Chemical topic in portion Inorganic Chemical Industries of Chemical Technology
Answer» Correct ANSWER is (b) Copper The BEST explanation: Copper is put into solution when manganese nodules are leached using H2SO4 as solvent at temperature of 77°F. When temperature is AROUND 120°F, nickel GOES into solution.

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