AIIMS AIIMS Solved Paper-2009

  • question_answer

    Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as

    Assertion: Bleaching powder is a mixed salt. Reason: In the presence of \[COC{{l}_{2}}\], bleaching powder decomposes to give \[COC{{l}_{2}}\] and \[{{O}_{2}}\].

    A) If both Assertion: and Reason: are true and the Reason: is the correct explanation of the Assertion:

    B) If both Assertion: and Reason: are true but the Reason: is not the correct explanation of the Assertion:

    C) If Assertion: is true but Reason: is false

    D) If both Assertion: and Reason: are false

    Correct Answer: B

    Solution :

    Bleaching powder is a mixed salt of calcium hypochlorite \[C{{H}_{3}}CH(OH)C{{H}_{3}}\] calcium chloride, \[C{{H}_{3}}C{{H}_{2}}CHOHC{{H}_{3}}\] and calcium hydroxide \[(i)<(iii)<(iI)<(iv)\]. In presence of cobalt chloride, it decomposes into \[\left( i \right)<\left( iv \right)<\left( iii \right)<(i)\].


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