A compound whose aqueous solution will have the highest `pH`

Options

A. `NaCl`
B. `NaHCO_(3)`
C. `Na_(2)CO_(3)`
D. `NH_(4)Cl`

Answer

C

Explanation

The hydrolysis of NaCl gives neutral solution because it is salt of strong acid and strong base and hence, its pH is 7. `NH_(4)Cl` is salt of weak base and strong acid, so its pH is less than 7. `NaHCO_(3)` is also acidic whereas `Na_(2)CO_(3)` is salt of strong base and weak acid, so its pH is more than 7.