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SSC Sample Paper SSC-CGL TIER - I Sample Test Paper-6

  • question_answer
    Which of the following materials is resistant to boiling aqua regia?

    A) Polythene                     

    B) Teflon

    C) Bakelite            

    D) Nylon-66

    Correct Answer: B

    Solution :

    Teflon is tetra fluoroethylene. It is used as non-stick coating on cook wares. It is very resistant due to strong Carbon Fluorine bonds. Aqua regia is a mixture of Nitric acid and Hydrochloric acid in the ratio of 1: 3.


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