UPSC General Studies Solved Paper - General Studies-2014

  • question_answer
    With reference to Neem tree, consider the following statements.
    1. Neem oil can be used as a pesticide to control the proliferation of some species of insects and mites.
    2. Neem seeds are used in the manufacture of biofuels and hospital detergents.
    3. Neem oil has applications in pharmaceutical industry.
    Which of the statement(s) given above is/are correct?

    A)  1 and 2

    B)  Only 3

    C)  1 and 3           

    D)  All of these

    Correct Answer: C

    Solution :

    Exp. [c] Neem (Azadirachta Indica), native to India, is well known for its diverse range of medicinal properties and uses. It is attributed due to extraction of many biologically active compounds i.e. alkaloid flavonoids, carotenoids and most active azadirachti, compounds like salannin, steroids, ketones volatile oils, meliantriol and nimbin are used to control mites and certain insects (only chewing and sucking).It prevents insects to eat plants and affects their brain and hormonal system to work efficiently, leading to death. The kernels of neem owing to its antibacterial properties is used in pharmaceutical industry.

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