Which of the following is a byproduct of soap?

Correct option is D

The correct answer is (d) Glycerin.
· Glycerin is a byproduct of the soap-making process, known as saponification. During this process, fats or oils are reacted with an alkali, such as sodium hydroxide, to produce soap and glycerin.
Information Booster:
Butene:
· Butene is an alkene used in the production of polymers but is not related to soap production.
Isoprene:
· Isoprene is a hydrocarbon used in the production of synthetic rubber and other polymers, not a byproduct of soap.
Ethylene glycol:
· Ethylene glycol is commonly used as an antifreeze and in the production of polyester fibers, but it is not produced during soap-making.