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:

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: Given below are two statements : Statement (I) : Potassium hydrogen phthalate is a primary standard for standardisation

Quantrex Academy · Accepted Answer

Correct answer: A. Both Statement I and Statement II are correct

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,

Given below are two statements : Statement (I) : Potassium hydrogen phthalate is a primary standard for standardisation

Hence option A is the answer.

Given below are two statements : Statement (I) : Potassium hydrogen...

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