Complexes formed in the following methods ar e (I) Mond's process for purification of nickel (II) Removal of unreacted AgBr from photographic plate (III) Removal of lead poisoning from the body (

Question

Complexes formed in the following methods are

(I) Mond's process for purification of nickel

(II) Removal of unreacted AgBr from photographic plate

(III) Removal of lead poisoning from the body

(IV) Cyanide process for extraction of silver

(V) Froth floatation process for separation of ZnS from galena ore by using depressant.

TestHub · Accepted Answer

I Mond's Process:

II Removal of unreacted AgBr from photographic plate:

$A g B r + 2 N a_{2} S_{2} O_{3} lN a_{3} [A g (S_{2} O_{3})_{2}] + N a B r$

III Removal of Lead poisoning

$P b^{2 +} + EDTA^{4 -} 1 [P b (EDTA)]^{2 -}$

IV Cyanid Process

$2 A g + 4 N a CN + H_{2} O + \frac{1}{2} O_{2} \to 2 N a [A g (CN)_{2}] + 2 N a O H$

Native Ore

V Separation of ZnS from PbS

ZnS + 4CN^– -> [Zn(CN)₄]^2–

Chemistry - Metallurgy Question with Solution | TestHub