Question

$100$ mL of $0.1M$ acetic acid is neutralised during titration by $NaOH$. At equivalent point, which one is not correct?

• A. $100$ mL of $0.1M$ $NaOH$ is used
• B. The $pH$ is equal to $7$
• C. The $pH$ is in alkaline range
• D. $50$ mL of $0.2M$ $NaOH$ is used

Answer 1

The correct option is B The $pH$ is equal to $7$

Equivalence point: 100 ml 0.1M acetic acid + 100 ml 0.1 M NaOH

100 ml 0.1M acetic acid + 50 ml 0.2 M NaOH

So, ${CH}_{3}COONa$ formed at equivalence point, which will undergoes hydrolysis to show $pH>7$ and solution will be alkaline in range.