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Question

Indicator V could be used to find the equivalence point for 0.1 M acetic acid and 0.1 M ammonium hydroxide solution.

A
True
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B
False
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Solution

The correct option is B False
The indicator V changes its colour formed to yellow in a pH range from 2.8 to 4.1.
Now 0.1M CH3COOH reacts with 0.1M NH4OH to form CH3COONH4. The pH will be around 7.0 (because pKa4.7 and pKb4.7). So the indicator V (pH 2.8 to 4.1) can not be used.
Answer will be false.

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