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Given below are two statements. Statement I: In the titration between strong acid and weak base methyl orange is suitable as an indicator. Statement II: For titration of acetic acid with NaOH phenolphthalein is not a suitable indicator. In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is false but Statement II is true
2. Statement I is true but Statement II is false
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false

Correct answer: Statement I is false but Statement II is true

Solution

Methyl orange is not suitable for titrating a strong acid with a weak base because it changes color in a pH range that does not correspond to the equivalence point of such a titration. Conversely, phenolphthalein is appropriate for the titration of acetic acid with NaOH, as it effectively indicates the endpoint in this scenario.

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