Baking soda is an acidic salt.
Baking soda is a basic salt. The chemical formula for baking soda is NaHCO3.
NaHCO3 is a salt of a weak acid, H2CO3, and a strong base, NaOH. Since carbonic acid is a weak acid, it remains undissociated. Hence, the solution becomes basic due to the presence of additional OH- ions produced by hydrolysis.