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

Question

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:

TestHub · Accepted Answer

A primary standard solution is a highly purified compound that is used to standardise a solution of known concentration for use in titrations and other analytical chemistry procedures.

Potassium hydrogen phthalate is primary standard for $NaOH$ . Formula for Potassium hydrogen phthalate is $C_{6} H_{5} O_{4} K$ . It behaves as a monobasic acid.

Phenolphthalein is used as an indicator in this titration.

The reaction is,

Hence option A is the answer.

Chemistry - Redox Reactions Question with Solution | TestHub

Options:

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