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In the extraction of which of the follow...

In the extraction of which of the following, complex ion forms

A

(a) `Cu`

B

(b) `Ag`

C

(c) `Fe`

D

(d) `Na`

Text Solution

Verified by Experts

The correct Answer is:
B
`Ag_2S+4NaCN hArr 2Naunderset("Sodium dicyno argentate")([Ag(CN)_(2)]+ Na_2 S)`
`2Na[Ag(CN)_2]+ZnrarrNa_2 underset("Sodium tetracyno zincate (ppt.)")([Zn(CN)_2]+2Agdarr)`
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