Directions: The following question has four choices out of which ONLY ONE is correct.
Among the following organic compounds, ________ is a component of a number of hair and skin conditioners.
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Benzene
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Benzethonium chloride
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Azinphos-methyl
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Azelaic acid
D
Correct answer
Explanation
Azelaic acid is an organic compound with the formula (CH2)7(CO2H)2. This saturated dicarboxylic acid exists as a white powder. It is found in wheat, rye, and barley. It is a component of a number of hair and skin conditioners.