Same chapter1 markDifficulty: Easy
A solution of pH 4 is:
Study of Acids, Bases and Salts
2 marksDifficulty: Easy
Define an acid and a base according to the modern concept.
Original Khojo Papers practice question — not from a past board paper.
Answer
An acid is a substance that dissociates in water to give hydrogen ions, H+, as the only positive ions. A base is a substance that dissociates in water to give hydroxide ions, OH−, as the only negative ions.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
A base that dissolves in water is called an alkali.
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