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Q. |
Pick up the correct statement from the following: |
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 |
Answer» D. All the above |
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