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NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
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Statement-I: Leaching of gold with cyanide ion in absence of leads to cyano complex of
Statement-II: Zinc is oxidized during the displacement reaction carried out for gold extraction.
In the light of the above statements, choose the correct answer from the options given below.
Statement-II: Zinc is oxidized during the displacement reaction carried out for gold extraction.
In the light of the above statements, choose the correct answer from the options given below.
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Correct option: D
Statement-I is incorrect but statement-II is correct
Statement-I is incorrect because leaching of gold with cyanide in the presence of air/O2 leads to the formation of the complex, . Statement-II is correct because zinc is oxidized to during the displacement reaction.
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