Is NaOH an acid or base?
NaOH is a strong base.
Sodium Hydroxide (NaOH) contains sodium, and alkali metal. Elements on the left most side of the periodic table (ie group 1 and 2) will form basic solutions. Group 1 forms the most basic solutions, which is one reason Na forms a strong base. Groups on the opposite side will form acidic solutions, with halogens from group 17 forming the most acidic solutions.