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:
Select the correct option:
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
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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
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