Question 1
In condensation polymerization, a common by-product is
◦
ethylene.◦
alcohol.◦
aldehyde.◦
water.◦
None of these are correct.Question 2
In each pair below the relative strength of the polymer types is indicated with the stronger polymer on the right. Which comparison is wrong?
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low molecular weight < high molecular weight◦
polyamide (e.g., nylon) < polyhydrocarbon (e.g., polyethylene)◦
branched < linear◦
low density < high density◦
atactic < isotactic