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Chemistry
Acids, Bases and Salts
606+ practice questions available
Sample Practice Questions
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1
Medium
Bleaching powder is produced by the action of chlorine on:
ACalcium oxide (Quick lime)
BCalcium hydroxide (Slaked lime)
CCalcium carbonate (Limestone)
DCalcium chloride
2
Easy
When an acid reacts with a metal oxide, the products are:
ASalt and Hydrogen gas
BSalt and Water
CSalt and Carbon dioxide
DBase and Water
3
Hard
A student is given three unknown solutions A, B, and C. Solution A turns red litmus blue, B turns blue litmus red, and C has no effect on either. Identify the solutions.
AA-Acid, B-Base, C-Neutral
BA-Base, B-Acid, C-Neutral
CA-Neutral, B-Acid, C-Base
DA-Base, B-Neutral, C-Acid
4
Medium
As the pH value of a solution increases from 7 to 14, it represents:
AIncrease in \( H^+ \) ion concentration
BDecrease in \( OH^- \) ion concentration
CIncrease in \( OH^- \) ion concentration
DIncrease in acidic strength
5
Easy
What is the pH of a solution that has a high concentration of \( OH^- \) ions?
A1
B7
C13
D4
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