Answer:
(1) NaOH
Explanation:
NaOH, sodium hydroxide is a base. HCl, hydrochloric acid is an acid. CH3OH, methanol is an alcohol. NaCl, sodium chloride is salt.
pH below 7.0 is acidic, pH above 7.0 is basic, and pH at 7.0 is neutral.
Since NaOH is the only base in among the given compounds, its pH will above 7.0. Therefore, NaOH will have the highest pH.
