Which salt is formed in the reaction between sodium hydroxide and hydrochloric acid?
Answer and explanation
Correct answer: Sodium chloride
This is a neutralisation reaction between a base and an acid. The balanced equation is NaOH + HCl → NaCl + H₂O. The sodium ion comes from sodium hydroxide, while the chloride ion comes from hydrochloric acid; together they form sodium chloride, and hydrogen ions combine with hydroxide ions to form water. Hence option A is correct. The other salts require carbonate, calcium, or sulphate ions, none of which are present in the reactants.
Frequently asked questions
What is the correct answer to this question?
Sodium chloride
Why is this the correct answer?
This is a neutralisation reaction between a base and an acid. The balanced equation is NaOH + HCl → NaCl + H₂O. The sodium ion comes from sodium hydroxide, while the chloride ion comes from hydrochloric acid; together they form sodium chloride, and hydrogen ions combine with hydroxide ions to form water. Hence option A is correct. The other salts require carbonate, calcium, or sulphate ions, none of which are present in the reactants.
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.
