Question

The given figure represents titration curve of $HCl$ against $NaOH$. The pH at equivalence point will be:

• A. $7$
• B. $6$
• C. $8$
• D. $3$

Answer 1

The correct option is A $7$

In an acid-base titration (strong acid and strong base), at the equivalence point enough titration has gone into make the chemical amounts of acid and base exactly equal. Since here strong acid $HCl$ and strong base $NaOH$ are used and they completely neutralise each other at equivalence point to give $pH$ of $7$.