1.

Silver is not produced when:

Answer»

`AgNO_(3)` solution is treated with CU rod
`AgNO_(3)` (ammoniacal solution) reacts with glucose
`AgNO_(3)` solution + excess KCN is reacted with Zn dust
`AgNO_(3)` solution is treated with `Na_(2)S_(2)O_(3)`, FOLLOWED by heating

Answer :D


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