Chemistry · 2022
JEE Main · 27 June 2022, Shift 2 · Q63
Statement I: Leaching of gold with cyanide ion in absence of air / O_2 leads to cyano complex of Au(III). Statement II: Zinc is oxidized during the…
Statement I: Leaching of gold with cyanide ion in absence of air / $\displaystyle \mathrm{O}_2$ leads to cyano complex of Au(III).
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.
Official answer
(4)
Statement I is incorrect but statement II is correct.
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.