Question

Absolute alcohol is:
A.100% pure ethanol
B.95% alcohol + 5% water
C.Ethanol + Water + Phenol
D.95% Ethanol + 5% methanol

Answer 1

Hint:Generally, ethanol or ethyl alcohol is taken as alcohol. It is also commonly known as grain alcohol. It is widely used as antiseptics, disinfectants and as a solvent for many purposes. Pure ethanol is a colorless and flammable liquid having a boiling point of round ${78^{\text{o}}}{\text{C}}$

Complete answer:
Ethanol is a colorless, volatile liquid with a characteristic smell. It is also highly flammable. Ethanol is a simple alcohol with two carbon atoms and is represented by the chemical formula ${\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{OH}}$.
Absolute alcohol is a liquid alcohol solution which contains almost more than 99% pure alcohol (ethyl alcohol) by weight. It is an important constituent of alcoholic beverages. Alcohol is prepared by the fermentation of sugar through petrochemical processes or by yeast. The alcohol obtained through this method contains some amount of water and it is removed by adding some dry slat. The dry salt absorbs the water content of the ethanol solution as it passes through and we obtain a pure alcohol.
95% alcohol + 5% water solution is known as rectified alcohol. It is a highly concentrated solution of ethanol.
95% ethanol + 5% methanol is known as denatured alcohol prepared by adding methanol to anhydrous ethanol. Pure alcohol prepared is denatured.

Thus, the correct answer is A.

Note:
Absolute alcohol is used in a wide variety of applications, including those in biology, medical sciences and in organic chemistry as solvent and reagent. It can also be used as an alternative fuel to gasoline for combustion engines due to its flammability and good calorific value.