Silver jewellery becomes black on prolonged exposure to air, it is due to the formation of

Ag $_{3}$ N

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Ag $_{2}$ O

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Ag $_{2}$ S and Ag $_{3}$ N

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Ag $_{2}$ S

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Solution

Silver combines with SO $_{2}$ in air to give silver sulphide

$2 A g + S O_{2} ⟶ A g_{2} S + O_{2}$

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Q. Question 13
Silver articles become black on prolonged exposure to air. This is due to the formation of:
(a)

{Ag}_{3} N

(b)

{Ag}_{2} O

(c)

{Ag}_{2} S

(d)

{Ag}_{2} S

and

{Ag}_{3} N

The articles made of silver metal become dark on prolonged exposure to air. This is due to the formation of a layer of its:
(a) oxide (b) hydride (c) sulphide (d) carbonate

Silver article become black on prolonged exposure to air this is because

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Silver jewellery becomes black on prolonged exposure to air, it is due to the formation of

Silver combines with SO2 in air to give silver sulphide 2Ag+SO2⟶Ag2S+O2

Silver combines with SO $_{2}$ in air to give silver sulphide

$2 A g + S O_{2} ⟶ A g_{2} S + O_{2}$