Question

In which of the following substances, ethanol is not used?
A) Tonics
B) Cough mixture
C) Candle
D) Alcohol

Answer 1

Hint:Alcohols are the class of the organic compounds containing hydroxyl group\[ - {\text{OH}}\] in their structures which is attached to the saturated carbon atom.Depending on the nature of the carbon to which the hydroxyl group is attached there are three types of alcohol that are primary, secondary, and tertiary alcohols.In the case of the primary alcohol hydroxyl group is attached to a carbon which is attached to three hydrogen atoms.In the case of the secondary alcohol hydroxyl group is attached to the carbon which is attached to two hydrogen atoms and one carbon atom.In the case of the tertiary alcohol hydroxyl group is attached to the carbon which is attached to one hydrogen atom and two carbon atoms.

Complete answer:
Here, in the question alcohol has given is ethanol which is also called ethyl alcohol. The molecular formula of ethanol is \[{{\text{C}}_{\text{2}}}{{\text{H}}_{\text{5}}}{\text{OH}}\]. It is the primary alcohol.
Ethanol is colourless, clear liquid used widely as a solvent.
As ethanol acts as a good solvent therefore it is used in the preparation of many medicines, and tonics.
Therefore, option (A) Tonics and option (B) Cough syrup is incorrect.
Candles are made up of wax where ethanol is not used. Hence, option(C) candle is the correct answer to the question.
Here, option (D) alcohol is also incorrect. Because ethanol is the principal ingredient of beer, wine, rum, brandy-like alcoholic beverages.
Hence,the correct option is (C).

Note:Ethanol is acts good solvent therefore it is widely used in pharmaceutical industries, perfumes, also in cosmetics, also used in the preservation of the products, etc.It is also used for the synthesis of the many organic compounds, used as an additive in case of the gasoline, also used as a fuel.