JEE Main & Advanced Sample Paper JEE Main Sample Paper-47

  • question_answer
    The bleaching action of bleaching powder is due to the formation of

    A)  \[CaC{{l}_{2}}\]                 

    B)  \[CaS{{O}_{4}}\]

    C)  \[HClO\]                    

    D)  \[Ca{{(Cl{{O}_{3}})}_{2}}\]

    Correct Answer: C

    Solution :

     In the presence of dilute acids, bleaching powder loses oxygen, \[2CaOC{{l}_{2}}+{{H}_{2}}S{{O}_{4}}\xrightarrow{\,}\,CaC{{l}_{2}}\] \[+CaS{{O}_{4}}+2HClO\] \[HClO\xrightarrow{\,}\,HCl+[O]\] This oxygen is used for oxidation-bleaching.

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