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Silver articles become black on prolonge...

Silver articles become black on prolonged exposure to air. This is due to the formation of

A

`Ag_(3)N`

B

`Ag_(3)O`

C

`Ag_(2)S`

D

`Ag_(2)S` and ` Ag_(3)N`

Text Solution

Verified by Experts

The correct Answer is:
C
Silver article become black because silver reacts with `H_(2)S` gas present in air to term black coating of `Ag_(2)S`. The reaction is
`underset("Silver")(Ag)+underset("Hydrogen sulphide")(H_(2)O)to underset"(black)"underset("Silver sulphide")(Ag_(2)S)+H_(2)`
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Knowledge Check

  • Silver tarnishes due to the formation of ____

    A
    oxide layer
    B
    sulphide layer
    C
    nitride layer
    D
    hydride layer

  • Diethyl ether on prolonged exposure to air forms

    A
    B
    C
    D

  • Tarnishing of silver is due to the formation of

    A
    `Ag_(2)S`
    B
    `Ag_(2)O`
    C
    AgCl
    D
    `Ag_(2)SO_(4)`

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