Question

A dilute solution of acetic acid in water is called
A: Methyl alcohol.
B: Vinegar.
C: Beer.
D: None of the above.

Answer 1

First rule before solving these kinds of questions is that we have to know whether the given options are solutions or not. Eliminating the choices which are not even solutions (for examples, purely fermented products and common industrial solutions having only one compound) is the second rule and knowing the compositions of certain solutions helps you to solve the solution even quickly.

Complete step by step answer:
Let us start by using the rules given in the hint section. Let us all start looking at the compositions through which we will be to identify the right solution to the given problem. The products can generally be of many types and behaviors. They can be made by the same compositions, but at different amounts. The process may involve different catalysts and conditions like pressure and temperature. But these kinds of questions mostly won’t involve products having the same components.
Methyl alcohol or methanol: Methyl alcohol is the first member of the alcohol family. It is generally not taken to consideration as a solution, since it can either be a solute or a solvent. To add to the point that it is not a solution, it can be said to be a combination of Carbon monoxide gas and Hydrogen gas in the presence of a catalyst. Hence it cannot be the right answer.
Beer: Beer is a product formed from fermentation. It is made from the processed decomposition of natural ingredients like Malt, Hops, Yeast and water. Since there is no acetic acid used in its preparation, it is not the correct answer too.
Vinegar: Vinegar is used as a preservative in the food industries. By the point we can find out a similarity that Acetic acid is used as a preservative too. Let us know what composition Vinegar holds. It is the dilute solution of acetic acid and water. It can also be produced by fermenting yeast and oxidizing ethanol by acetic acid bacteria. Hence, this is the correct answer.
By the given information of compositions of the given options, Vinegar suits the most of all. Even though all of the options included water, only Vinegar included acetic acid.
Hence the answer is Option B- Vinegar.

Note:
Acetic acid is not vinegar, while acetic acid is the main component of vinegar other than water. Vinegar contains certain vitamins and other compounds not present in acetic acids such as riboflavin, mineral salts and vitamin B-1 from the starting content that give vinegar its distinct flavor. Vinegar is used in so many applications starting from kitchen to skincare.