Commercial rectified spirit has an alcohol composition containing________________?
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Answer: C. 95% alcohol
Explanation
Commercial rectified spirit is an azeotropic ethanol and water mixture produced via fractional distillation methods. The resulting liquid composition contains approximately ninety-five percent ethanol and five percent water by volume. Simple distillation cannot exceed this ninety-five percent threshold due to the formation of a constant-boiling azeotrope. An azeotrope is a mixture of liquids whose boiling point remains constant during fractional distillation processes. Ethanol is a versatile organic solvent and alcohol widely utilized in laboratories, pharmaceuticals, and manufacturing. Specialized drying agents or benzene entrainers are required to break the azeotrope and produce absolute anhydrous alcohol.
Twelve percent alcohol represents typical fermentation limits for natural wines rather than concentrated commercial spirits. Ninety percent alcohol is slightly lower than the standard azeotropic composition achieved by commercial distillation columns. One hundred percent alcohol cannot be obtained via standard distillation alone due to water-ethanol azeotrope constraints.
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