23. a neutralization reaction between an acid and a base always produces
a. salt and acidic anhydride. c. water and basic anhydride.
b. salt and basic anhydride. d. salt and water.

d. salt and water.

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

A neutralization reaction is a double displacement reaction in which an acid reacts with base to produce salt and water.

Example:

level 4 to level 2 : ))