(v) Silver gets corroded due to
(a) Nitrogen
(b) Oxygen
(c) Hydrogen sulphide
(d) Carbon dioxide
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Answer:
Hydrogen sulphide is correct option
Explanation:
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Answer : (c) Hydrogen sulphide
Explanation : Silver is a fairly stable metal and under normal circumstances does not corrode quickly. However, it is particularly susceptible to the effects of the sulfide radical. However, when exposed to air, silver reacts with Hydrogen Sulphide in the atmosphere, especially in marine environment, and readily forms a surface tarnish of silver sulphide.
2Ag + H2S ⇒ Ag2S +H2
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