Multiple Choice Questions on Bleaching powder is used 1 For bleaching cotton and linen in the textile industry 2 For bleaching wo........... for UPSC Civil Services Examination (General Studies) Preparation

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    Bleaching powder is used:

    1. For bleaching cotton and linen in the textile industry.

    2. For bleaching wood pulp in paper factories.

    3. As a reducing agent in many chemical industries.

    4. For disinfecting drinking water to make it free of germs.

    Which of the above applications are correct?

    1 and 4 only

    Incorrect Answer

    2 and 4 only

    Incorrect Answer

    1, 2 and 4 only

    Correct Answer

    All of the above

    Incorrect Answer
    Explanation:

    .Bleaching powder is an oxidising agent.Bleaching powder is chemically, calcium oxychloride (CaOCl2). Bleaching powder is manufactured using Backmann’s plant in which slack lime and Chlorine are made to react to create Bleaching Powder. Bleaching powder is a yellowish white powder with a strong smell of chlorine. When exposed to air, bleaching powder gives a smell of chlorine. This is because bleaching powder reacts with carbon dioxide from the atmosphere to produce calcium carbonate and chlorine.

    Bleaching powder is used to bleach cotton and linen in textile industry and wood pulp in paper industry. It is also used to bleach washed clothes in laundry. Bleaching powder is also used as a disinfectant and germicide, since it liberates chlorine on exposure to the atmosphere which destroys the germs. It is also used for disinfecting water for the same reason. It is also used as an oxidising agent in many chemical industries

    Oxidizing and reducing agents are important in industrial applications. They are used in processes such as purifying water, bleaching fabrics, and storing energy (such as in batteries and gasoline). Oxidizing and reducing agents are especially crucial in biological processes such as metabolism and photosynthesis.


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