Define an acid and a base according to the modern concept.
Study of Acids, Bases and Salts
Original Khojo Papers practice question — not from a past board paper.
strongly acidic
No citable source has been recorded for this record. Treat it as practice material, not as fact.
A pH well below 7 indicates a high concentration of hydrogen ions, so a pH of 3 is strongly acidic.
From the same topic and chapter, at a similar level.
Define an acid and a base according to the modern concept.
Study of Acids, Bases and Salts
A solution of pH 4 is:
Study of Acids, Bases and Salts
Name the gas evolved when dilute hydrochloric acid reacts with zinc, and state how it is identified.
Study of Acids, Bases and Salts
Distinguish between a strong acid and a weak acid, giving one example of each.
Study of Acids, Bases and Salts
What is the pH scale? State the pH of a neutral, an acidic and an alkaline solution.
Study of Acids, Bases and Salts
Name the four types of salts and give one example of each.
Study of Acids, Bases and Salts