MCQ
Which of the following salts will give highest $pH$ in water?
- A$KCl$
- B$NaCl$
- ✓$Na_2CO_3$
- D$CuSO_4$
✓
Answer
Correct option: C.
$Na_2CO_3$
c
$\mathrm{Na}_{2} \mathrm{CO}_{3}$ which is a salt of $\mathrm{NaOH}(\text {strong base) and } \mathrm{H}_{2} \mathrm{CO}_{3}$ (weak acid) will produce a basic solution with $pH$ greater than $7.$
$\mathrm{Na}_{2} \mathrm{CO}_{3}$ which is a salt of $\mathrm{NaOH}(\text {strong base) and } \mathrm{H}_{2} \mathrm{CO}_{3}$ (weak acid) will produce a basic solution with $pH$ greater than $7.$
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