Chm Test Bank

CHM TEST BANK ) Which functional group contains a carbonyl group and a hydroxyl group bonded to the same carbon atom? A) aldehyde B) amide C) carboxylic acid D) ester E) ketone - CORRECT ANSWERS C) carboxylic acid Which functional group contains a carbonyl group and an ether linkage bonded to the same carbon atom? A) aldehyde B) amide C) carboxylic acid D) ester E) ketone - CORRECT ANSWERS D) ester The similarities in properties of carboxylic acids, esters, and amides can best be explained by A) their polarity and structural similarities. B) their similarities in molar mass. C) hydrogen bonding. D) the ease with which they form ions. E) none of these. - CORRECT ANSWERS A) their polarity and structural similarities. The most common reactions of carboxylic acids or their derivatives involve A) addition across the double bond between carbon and oxygen. B) replacement of the oxygen atom in the carbonyl group. C) replacement of the group bonded to the carbonyl atom. D) oxidation of the R group. E) reduction of the R group. - CORRECT ANSWERS C) replacement of the group bonded to the carbonyl atom. All of the statements concerning citric acid are true except A) it contains three carboxylic acid groups because its carbon skeleton is branched. B) it is very soluble in water. C) its salts are used in many consumer products. D) it is produced only by plants. E) it is a weak acid. - CORRECT ANSWERS D) it is produced only by plants. 11) Which of the following bonds is not present in a carboxylic acid functional group? A) C=C B) C=O C) C-O D) O-H E) none of the above - CORRECT ANSWERS A) C=C The pleasant, characteristic odor of fruit flavorings is often associated with the presence of A) esters B) carboxylic acids C) carboxylate salts D) ketones - CORRECT ANSWERS A) ester