JEE Main & Advanced Chemistry Analytical Chemistry Question Bank Mock Test - Principles Related to Practical Chemistry

  • question_answer
    White precipitate of AgCl turns to greyish or black when

    A) reacts with \[N{{a}_{3}}As{{O}_{4}}\]

    B) exposed to sunlight

    C) reacts with \[{{K}_{2}}Cr{{O}_{4}}\]

    D) reacts with concentrated HCl

    Correct Answer: B

    Solution :

    [b] White silver chloride \[(AgCl)\]turns grey in sunlight because of photolysis or photolytic decomposition in the presence of sunlight. AgCl decomposes to form Ag and Cl.


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