Carboxylic acids react with alcoholic potassium hydroxide and leads to the formation of salt along with water like in a normal acid base reaction. Propionic acid is also a carboxylic acid and it reacts with potassium hydroxide and gives us a salt of potassium and water. The salt thus formed is potassium propionate. The reaction is - 3 2 3 2 2 CH CH COOH KOH CH CH COOK H O -> Therefore, the correct answer is option (a) potassium propionate
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