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JEE CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

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Understanding +4 | -1

Extraction of Gold and silver involves leaching the metal with

C{N^ - }

ion. The metal is recovered by

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Correct option: A

Displacement of metal by some other metal from complex ion

Option C (S-I is correct and S-II is incorrect) is correct because oxides of nitrogen and sulfur cause acid rain, but acid rain does not directly deplete the ozone layer.

JEE CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

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