Why is sodium chloride solution generally considered neutral?
Answer and explanation
Correct answer: Because it is made from a strong acid and a strong base
Sodium chloride is formed by the neutralisation of hydrochloric acid, a strong acid, and sodium hydroxide, a strong base: HCl + NaOH → NaCl + H2O. Na+ and Cl− ions do not significantly hydrolyse water, so the solution is approximately neutral, near pH 7. Thus option B is correct; options C and D contradict its ionic, soluble nature.
Frequently asked questions
What is the correct answer to this question?
Because it is made from a strong acid and a strong base
Why is this the correct answer?
Sodium chloride is formed by the neutralisation of hydrochloric acid, a strong acid, and sodium hydroxide, a strong base: HCl + NaOH → NaCl + H2O. Na+ and Cl− ions do not significantly hydrolyse water, so the solution is approximately neutral, near pH 7. Thus option B is correct; options C and D contradict its ionic, soluble nature.
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.
