Question

Which acids/bases are used for the following?
1. To neutralize sting of wasps
2. In alkaline batteries
3. Manufacturing of soap
A. \[1.\ C{{H}_{3}}CHO,\ \text{2}\text{. CsOH 3}\text{. Ca(OH}{{\text{)}}_{\text{2}}}\]
B. \[1.\ C{{H}_{3}}COOH,\ \text{2}\text{. CuS}{{\text{O}}_{\text{4}}}\text{ 3}\text{. Ba(OH}{{\text{)}}_{\text{2}}}\]
C. \[1.\ C{{H}_{3}}COOH,\ \text{2}\text{. KOH 3}\text{. NaOH}\]

Answer 1

Hint: Acids are generally those substances which are capable of donating a proton i.e. hydrogen atom to another substance while bases are those substances which are able to accept a hydrogen ion from an acid.

Complete answer:
Acids are generally sour in taste and it turns blue litmus paper to red. Bases are bitter in taste and turn red litmus paper into red. A base that can be dissolved in water is known by the term alkali and when these substances chemically react with acids they form salts.
1. In the sting of ants formic acid is present represented by the chemical formula \[C{{H}_{3}}COOH\] and this is used as anti-wasp agents.
2. In alkaline batteries generally the base is used as an electrolyte which gives hydroxyl ions in solution, in the base \[\text{KOH}\] is used.
3. Manufacturing of soap generally requires an alkali or we can say base like \[\text{NaOH}\]and a long chain of fatty acids like sodium stearate to form an ester or sodium acetate salt.

Hence option C is the correct answer.

Note:
If we mix equal amounts of an acid and a base then two chemicals essentially cancel out each other and produce salt and water. Mixing equal amounts of a strong acid with a strong base results in a neutral solution whose pH value remains 7 and this type of reaction is known as neutralization reaction.