Discussion :: Building Materials
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Pick up the correct statement from the following:
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A.
Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite |
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B.
Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite |
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C.
Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic |
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D.
All the above. |
Answer : Option D
Explanation :
No answer description available for this question
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