Which salt is formed in the reaction between potassium hydroxide and hydrochloric acid?
Answer and explanation
Correct answer: Potassium chloride
Potassium hydroxide and hydrochloric acid undergo neutralisation. The balanced equation is KOH + HCl → KCl + H₂O. Potassium hydroxide contributes K⁺, while hydrochloric acid contributes Cl⁻; the ions combine to form potassium chloride, and H⁺ combines with OH⁻ to form water. Sodium, sulphate and calcium ions are not present, so options A, B and D do not follow from the reactants.
Frequently asked questions
What is the correct answer to this question?
Potassium chloride
Why is this the correct answer?
Potassium hydroxide and hydrochloric acid undergo neutralisation. The balanced equation is KOH + HCl → KCl + H₂O. Potassium hydroxide contributes K⁺, while hydrochloric acid contributes Cl⁻; the ions combine to form potassium chloride, and H⁺ combines with OH⁻ to form water. Sodium, sulphate and calcium ions are not present, so options A, B and D do not follow from 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.
