New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Directions : Each of the following five items consists of a word in capital letters, followed by four words or groups of words. Select the word or group of words that is most similar in meaning to the word in capital letters.

    Which one of the following is a super-cooled

    liquid?
    A Ice-cream Correct Answer Incorrect Answer
    B Teflon Correct Answer Incorrect Answer
    C Glass Correct Answer Incorrect Answer
    D Mercury Correct Answer Incorrect Answer

    Solution

    Supercooling is the process of chilling a liquid below its freezing point, without it becoming solid. • A super-cooled liquid is a liquid below its freezing point that has not crystalized to freeze. • Glass is an example of supercooled liquid. Hence option C is correct. • Teflon is not a product on its own, but a brand name of a product. It refers to a chemical coating known as polytetrafluoroethylene (PTFE). • Mercury is the only liquid metal at room temperature.

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