McqMate
| Q. |
Polythene is polymer of – |
| A. | Ethylene |
| B. | Propylene |
| C. | Acetylene |
| D. | Aniline |
| Answer» A. Ethylene | |
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Explanation: The ingredient or monomer is ethylene (IUPAC name ethene). It has the formula C2H4, consisting of a pair of CH2 groups connected by a double bond. Because the catalysts are highly reactive, the ethylene must be of high purity. Typical specifications are <5 ppm for water, oxygen, as well as other alkenes. Acceptable contaminants include N2, ethane (common precursor to ethylene), and methane. Ethylene is usually produced from petrochemical sources, but also is generated by dehydration of ethanol. |
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