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underset(("Sulphide ore")) (A) + NaCN ov...

`underset(("Sulphide ore")) (A) + NaCN overset ("Air") hArr underset(("Complex"))(B) +Na_(2) S overset(O_(2))rarr C`.
`C` is.

A

`Na_(2) SO_(4)`

B

`Na_(2)SO_(3)`

C

`Na_(2) O`

D

`Na_(2) O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`underset((A))(Ag_(2)S)+ 4NaCN overset ("air") hArr underset((B))(2Na[Ag(CN)_(2)])+ Na_(2) S`
`Na_(2)S+2O_(2) rarr underset((C))(Na_(2)SO_(4))`.
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