Identify A and B respectively in the following reactions. 4 Au (s) + 8 CN^{-}_(aq) + 2H_2O (aq) \stackrel{O_{2(g)}{────▶}} {A (aq)}_{↓↙{B+2Au(s)}Zn(s)} + 4OH^{-}_(aq)

Correct Answer is : [Au(CN)2]− ; [Zn(CN)2]−

[Au(CN)_2]^{-} ; [Zn(CN)_2]^{-}

TS EAMCET 03 May 2019 Shift 1 Solved Paper

Section: Chemistry

Question : 148 of 160

Marks: +1, -0

Identify A and B respectively in the following reactions.
4 Au (s) + 8 CN(aq)− + 2H2O (aq)

O2(g)

────▶

A(aq)

↓

B+2Au(s)

Zn(s)

+ 4OH(aq)−

Go to Question:

Prev Question

Next Question