The black coating formed on the surface of silver articles due to corrosion is ______.

silver bicarbonate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

silver sulphide

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

silver oxide

No worries! We‘ve got your back. Try BYJU‘S free classes today!

silver carbonate

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B silver sulphide
Corrosion is a process of conversion of a metal into its compound ie. oxides or carbonates etc. by continuous interaction with atmospheric air and water vapour.

On exposure to air for a long time, silver articles combine with sulphur in the atmosphere. As a result, black coating of silver sulphide is formed on their surface. The reaction involved is:
$2 Ag(s) + H_{2} S(g) \to {Ag}_{2} S(s) + H_{2} (g)$

Suggest Corrections

Similar questions

A black coating is observed on silver articles when left open in surroundings. This is due to .

Which compound is formed on the surface of silver by the action of corrosion?

We observe black coating (silver oxide) on silver articles when left open in surroundings.This is because of the

process called _____________.

Join BYJU'S Learning Program