Given below are two statements : Statement (I) : Potassium …

Chemistry Redox Reaction JEE Main 2024 Single Correct MCQ

Published on: August 11, 2026

Given below are two statements :

Statement (I) : Potassium hydrogen phthalate is a primary standard for standardisation of sodium hydroxide solution.

Statement (II) : In this titration phenolphthalein can be used as indicator.
In the light of the above statements, choose the most appropriate answer from the options given below:

Both Statement I and Statement II are correct

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are incorrect

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The correct answer is:

Statement (I) : Potassium hydrogen phthalate is a primary standard for standardisation of sodium hydroxide solution as it is economical and its concentration does not changes with time. Phenophthalin can acts as indicator in acid base titration as it shows colour in range 8.3 to 10.1

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