JEE Main & Advanced Chemistry The p-block Elements-II Question Bank Halogen Family

  • question_answer Chlorine acts as a bleaching agent only in presence of [IIT 1983; DCE 2002]

    A) Dry air

    B) Moisture

    C) Sunlight

    D) Pure oxygen

    Correct Answer: B

    Solution :

      \[C{{l}_{2}}+{{H}_{2}}O\,\to \,2HCl+[O]\] Nascent oxygen \[\underset{\text{flower}}{\mathop{\text{Coloured}}}\,\text{ }+[O]\,\underset{\text{agent}}{\mathop{\xrightarrow{\text{Bleaching }}}}\,\underset{(\text{Oxidized})}{\mathop{\text{Colourless}\,\text{flower}}}\,\]

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