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Why were branched alkylbenzene sulfonates largely phased out?
AThey are insoluble in water
BThey do not foam at all
CThey are poorly biodegradable
DThey cost too much to make
Answer & Solution
Correct answer: C. They are poorly biodegradable
Branched chains persist in the environment, so linear and more biodegradable surfactants replaced them.
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