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JEE Main Chemistry Class 11 Equilibrium Questions Part 3 Questions

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Question : 25

Total: 33

The titration curve of weak acid vs. strong base with phenolphthalein as indictor) is shown below. The K‌phenolphthalein ‌=4×10−10
Given :log‌2=0.3

The number of following statements/s which is/are correct about phenolphthalein is ________

[8-Apr-2023 shift 1]

It can be used as an indicator for the titration of weak acid with weak base.
It begins to change colour at pH=8.4
It is a weak organic base
It is colourless in acidic medium

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