The formation of only salt and water in an acid-base reaction best represents which idea?
Answer and explanation
Correct answer: Hydrogen ions and hydroxide ions combine to form water
The governing concept is neutralisation. In an aqueous reaction, an acid supplies H⁺ ions, represented more accurately as H₃O⁺, and a base supplies OH⁻ ions. These ions combine to form water: H⁺ + OH⁻ → H₂O. The remaining positive and negative ions combine to form the salt, so the overall products are salt and water. Hence option A is correct; the other statements are not general ionic reactions.
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What is the correct answer to this question?
Hydrogen ions and hydroxide ions combine to form water
Why is this the correct answer?
The governing concept is neutralisation. In an aqueous reaction, an acid supplies H⁺ ions, represented more accurately as H₃O⁺, and a base supplies OH⁻ ions. These ions combine to form water: H⁺ + OH⁻ → H₂O. The remaining positive and negative ions combine to form the salt, so the overall products are salt and water. Hence option A is correct; the other statements are not general ionic reactions.
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.
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