Why is an aqueous solution of sodium chloride generally neutral?
Answer and explanation
Correct answer: It is formed from a strong acid and a strong base
Sodium chloride is produced by neutralisation of hydrochloric acid, a strong acid, with sodium hydroxide, a strong base. Both ions remain substantially unhydrolysed in water, so neither an excess of hydrogen ions nor hydroxide ions is generated. The solution is therefore generally neutral. Option B gives an incomplete and incorrect origin, option C is chemically meaningless, and option D is false because sodium chloride dissociates into Na+ and Cl− ions.
Frequently asked questions
What is the correct answer to this question?
It is formed from a strong acid and a strong base
Why is this the correct answer?
Sodium chloride is produced by neutralisation of hydrochloric acid, a strong acid, with sodium hydroxide, a strong base. Both ions remain substantially unhydrolysed in water, so neither an excess of hydrogen ions nor hydroxide ions is generated. The solution is therefore generally neutral. Option B gives an incomplete and incorrect origin, option C is chemically meaningless, and option D is false because sodium chloride dissociates into Na+ and Cl− ions.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
