a. In the reaction given below, the deprotonation of carboxylic acid in the presence of NaOH leads to the formation of sodium salt of cyclohexancarboxylic acid and water.

Product of acid-base reaction in question a
b. In the reaction given below, the deprotonation of the starting material with sodium methoxide leads to the formation of sodium salt of the reactant and methanol.

Product of acid-base reaction of question b
c. In this reaction, the deprotonation of tertiary alcohol in the presence of NaH leads to the formation of sodium salt of tertiary alcohol and hydrogen.

Product of acid-base reaction in question c
d. In this reaction, the deprotonation of benzoic acid in the presence of sodium bicarbonate leads to the formation of sodium salt of benzoic acid, water, and carbon dioxide.

Product of acid-base reaction in question d