Question

Q 2- Which among the following statement(s) is(are) true? Exposure of silver

chloride to sunlight for a long duration turns grey due to

(i) the formation of silver by decomposition of silver chloride

(ii) sublimation of silver chloride

(iii) decomposition of chlorine gas from silver chloride

(iv) oxidation of silver chloride

(a) (i) only

(b) (i) and (iii)

(c) (ii) and (iii)

(d) (iv) only​

Answer 1

Answer:

Silver halides, especially Silver chloride undergo decomposition in presence of sunlight to produce silver metal and a halogen gas (chlorine or bromine gas). White color of silver chloride changes to grey due to formation of silver metal. Therefore, the option A is correct.

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