JEE Mains Chemistry Past PapershardMCQ SINGLE

Given below are two statements : Statement (I) : Potassium hydrogen phthalate is a primary standard JEE Mains Chemistry Past Papers Chemistry Question

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: (A) Both Statement I and Statement II are correct (B) Statement I is correct but Statement II is incorrect (C) Statement I is incorrect but Statement II is correct (D) Both Statement I and Statement II are incorrect

Answer: A

💡 Solution & Explanation

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 pH range 8.3 to 10.1

💬
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes
Ask on WhatsApp →

Practice 22,000+ questions like this

AI-adaptive practice, video lectures, and full JEE Mains Chemistry content — all in one place.

JEE Advanced · JEE Mains · NEET · IChO · AP Chemistry