Lanoline wool is:

palmitic ester of cholesterol containing only one aldehyde,

C H_{3} - (C H_{2})_{7} - C H O

and an aldehyde mono carboxylic acid

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stearic acid ester of cholesterol only

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oleic acid ester of cholesterol only

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palmitic acid or stearic acid or oleic acid ester of cholesterol

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Solution

The correct option is B palmitic acid or stearic acid or oleic acid ester of cholesterol
Lanoline wool is palmitic ester of cholesterol, $C H_{3} - (C H_{2})_{7} - C H O$ , and an aldehyde mono carboxylic acid. It is also called 'wool wax' or 'wool grease'. It is made of a mixture of cholesterol and the esters of several fatty acids. With water, it forms an emulsion. When purified, lanolin is used as a base for ointments and creams, as a lubricant, and in finishing and preserving leather. It is also a constituent of some varnishes and paints.

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