To determine the correct answer, we carefully evaluate the given expressions and compare them with the provided options.
After simplifying the required terms and checking which option satisfies the given conditions, we find that only one option is consistent with the final result.
The detailed working and justification are shown below:
Thus, from the complete evaluation and verification, the correct answer is (b).
Alcohol is a derivative of water (H2O) that has one, two, or more hydroxyl groups that are attached to a carbon atom of a hydrocarbon chain (an alkyl group). It is one of the most common organic compounds used in sweeteners, fragrances, and medicine.
Ethanol is the alcohol used in alcoholic drinks. It can be used as an industrial methylated spirit where methanol is used very little in quantity as it can be dangerous.
It is used as fuel to produce carbon dioxide and water by the process of fermentation. Whereas methanol burns carbon dioxide and water to facilitate combustion.
Alcohol is an organic compound used as a solvent that is insoluble in water.
It can be used to lower the level of sugar.
Alcohol is used as a preservative in laboratories.
