Published by:
CGP EDU Academic Team
Published on: August 14, 2026
At 25°C, pH range of phenolphthalein is 8 - 10. At 100°C, pH range of phenolphthalein would be –
Text Solution
Verified by ExpertsThe correct answer is:
B
pH range is altered to 7 - 9
The pH range of the indicator is pKj n db 1. On increase in temperature pKj n decreases therefore pH range of indicator decreases.
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