Consider the following statements: I. Soaps are sodium or potassium salts of long-chain carboxylic acids. II. The properties of catenation and isomerism in the element carbon are attributed to existence of large number of organic compounds than inorganic compounds. III. Carbon dioxide is acidic but carbon monoxide is neutral molecule. Which of the statements given above are correct?
D. I, II and III
Statement I is correct as soaps are sodium or potassium salts of long-chain fatty acids, which are carboxylic acids. Statement II is correct as the unique properties of carbon, such as catenation (the ability to form long chains and rings) and isomerism, are responsible for the vast number of organic compounds compared to inorganic compounds. Statement III is correct as carbon dioxide (CO_2) is an acidic oxide (it dissolves in water to form carbonic acid) whereas carbon monoxide (CO) is a neutral oxide. Thus, all statements I, II, and III are correct.
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