Tarnishing of a silver spoon kept in open over a long period of time is a __________ process.

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Solution

Tarnishing of silver is the reaction of silver with hydrogen sulfide present in the atmosphere to form silver sulfide (black in color) along with the release of hydrogen gas.
$2 A g_{(s)} + H_{2} S_{(g)} \to {Ag}_{2} S_{(s)} + H_{2 (g)}$

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Tarnishing of a silver spoon kept in open over a long period of time is a __________ process.

Tarnishing of silver is the reaction of silver with hydrogen sulfide present in the atmosphere to form silver sulfide (black in color) along with the release of hydrogen gas. 2 Ag(s) + H2S(g) → Ag2S(s) + H2(g)

Tarnishing of silver is the reaction of silver with hydrogen sulfide present in the atmosphere to form silver sulfide (black in color) along with the release of hydrogen gas.
$2 A g_{(s)} + H_{2} S_{(g)} \to {Ag}_{2} S_{(s)} + H_{2 (g)}$