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Discussion :: Building Materials

  1. Pick up the correct statement from the following:

  2. A.

    Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite

    B.

    Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite

    C.

    Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic

    D.

    All the above.

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    Answer : Option D

    Explanation :

    No answer description available for this question


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