Building Materials - Civil Engineering Questions and Answers

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Pick up the correct statement from the following:

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

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

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

All the above

Answer : Option D

Explanation :

Explanation Not Provided

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