Q.

Impure gold is leached with a dilute solution of sodium cyanide to form a soluble complex ‘X’ . ‘X’ when treated with zinc forms another complex ‘Y’ and precipitates gold. Oxidation state and coordination number of central metal in ‘X’ is

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya

a

1, 4

b

3, 6

c

3, 4

d

1, 2

answer is D.

(Unlock A.I Detailed Solution for FREE)

Detailed Solution

4Au+8NaCN+2H2O+O2→4Na[Au(CN)2](X)+4NaOH 2Na[Au(CN)2]+Zn→Na2[Zn(CN)4](Y)+2Auin [Au(CN)2]- .  .  .  oxidation state of ‘Au’ is + 1 and coordination number is twoin [Zn(CN)4]-2 .  .  . Oxidation state pf 'Zn' is +2 and coordination number is four.
Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Online Course for IIT JEE
Best Online Course for NEET
Best Online Course for CBSE
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Online Course for IIT JEE
Best Online Course for NEET
Best Online Course for CBSE
whats app icon
Impure gold is leached with a dilute solution of sodium cyanide to form a soluble complex ‘X’ . ‘X’ when treated with zinc forms another complex ‘Y’ and precipitates gold. Oxidation state and coordination number of central metal in ‘X’ is