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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
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which among the following statement(s) is (are) true ? Exposure of sil...
Silver chloride turns grey due to the formation of silver by decomposition of silver chloride.
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Which among the following statement(s) is (are) true ? Exposure of sil...
Exposure of silver chloride to sunlight for a long duration turns grey due to the formation of silver by decomposition of silver chloride.

Explanation:

Silver chloride (AgCl) is a white crystalline solid that is insoluble in water. When exposed to sunlight for a long duration, it turns grey due to the decomposition of silver chloride and the formation of silver. This is because silver chloride is a photosensitive compound, and exposure to light causes it to decompose into its constituent elements, silver and chlorine.

The reaction can be represented as follows:

2AgCl + energy (sunlight) → 2Ag + Cl2

The chlorine gas released during the decomposition of silver chloride reacts with the moisture in the air to form hydrochloric acid. This hydrochloric acid reacts with the silver formed to produce silver chloride again. However, this process is slow and cannot prevent the accumulation of silver on the surface of the original silver chloride crystal, resulting in a greyish appearance.

Therefore, option (i) only is true, and options (ii), (iii), and (iv) are false.
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Community Answer
Which among the following statement(s) is (are) true ? Exposure of sil...
When silver chloride is kept in sunlight then it decomposes to silver. This reaction is photolytic decomposition reaction.
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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) onlyb)(i) and (iii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'A'. Can you explain this answer?
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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) onlyb)(i) and (iii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about 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) onlyb)(i) and (iii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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) onlyb)(i) and (iii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'A'. Can you explain this answer?.
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