Statement I : Leaching of gold with cyanide ion in absence of air / $O_{2}$ leads to cyano complex of $Au (3)$
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.

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is incorrect but Statement II is correct

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Leaching of gold with cyanide ion in presence of air / $O_{2}$ leads to cyano complex of ${Au}^{+}$ , i.e. Na[Au(CN)₂]

$4 Au + 8 {CN}^{-} + 2 H_{2} O + O_{2} \to 4 [Au {(CN)}_{2}]^{-} + 4 {OH}^{-}$

Watch 3-min video & get full concept clarity

JEE

NEET

Foundation JEE

Foundation NEET

CBSE