Statement I :Leaching |d and f Block Elements |JEE-MAIN 2022

JEE MAIN 2022

27-06-2022 S2

Question

Statement I : Leaching of gold with cyanide ion in absence of air / O2 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.

Select the correct option:

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Statement-1 : wrong, $\mathrm{Au}^{+}$is correct, not $\mathrm{Au}^{+3}$ Statement-2 : correct

Question Tags

JEE Main

Chemistry