Correct Answer - Option 3 : 351 K
Explanation:
Ethanol:
- Ethanol is commonly known as Ethyl Alcohol.
- Its chemical formula is C2H5OH.
- Ethanol is a very good solvent. Many compounds that are insoluble in water are soluble in Ethyl Alcohol.
- It is used in many medicines, such as tincture iodine, cough syrups, etc.
- The melting point of Ethanol is – 114° C and the boiling point is 78.37°C or 351 K, which is very low with respect to water.
Ethanol can be used as follows:
- Manufacture of organic compounds like acetaldehyde, acetic acid, and chloroform.
- Manufacturing of house paints.
- Pharmaceutical preparations like tincture of iodine, cough syrups, and tonics.
- Used as a preservative for the biological specimens.
- Alcoholic beverages.
- Used as gasoline in vehicles.
Denatured alcohol is ethanol that has additives to make it poisonous, bad-tasting, foul-smelling, or nauseating to discourage its recreational consumption.
- The term denatured alcohol refers to alcohol products adulterated with toxic and/or bad tasting additives (e.g., methanol, benzene, pyridine, castor oil, gasoline, isopropyl alcohol, and acetone), making it unsuitable for human consumption.
- The most common additive used is methanol (5–10%), giving rise to the term methylated spirits. Denatured alcohol is used as a lower-cost solvent or fuel for home-scale or industrial use.
