Which of the following statements about the carbonyl group of an aldehyde is NOTTRUE?O It can be oxidized to a carboxylic acid.O It can be reduced to a carboxylic acid.O At least one of the atorms in the carbonyl group must be hydrogen.O The carbon of the carbonyl group is electrophilic. A fellow lab student is attempting to identify his unknown organic compound by using the Tollens' test. Headds Tollens' reagent to a sample of benzaldehyde and to his unknown. You notice that neither hisbenzaldehyde or unknown sámple solution formed a silver precipitate. The student confidently proclaimsthat his unknown must not be an aldehyde. Is he correct?Yes, because his unknown solution failed to form a silver precipitate that indicates the presence of an aldehyde.O Yes, because the Tollens' test only forms a silver precipitate in the presence of an aromatic aldehyde.O No, because his positive control did not form a silver precipitate, therefore he should gently heat the samples to verifythe result.No, because the Tollens' test only forms a silver precipitate in the presence of a methyl ketone.

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Which of the following statements about the carbonyl group of an aldehyde is NOT TRUE? O It can be oxidized to a carboxylic acid. O It can be reduced to a carboxylic acid. O At least one of the atoms in the carbonyl group must be hydrogen. O The carbon of the carbonyl group is electrophilic.

Which of the following statements about the carbonyl group of an aldehyde is NOT TRUE? O It can be oxidized to a carboxylic acid. O It can be reduced to a carboxylic acid. O At least one of the atoms in the carbonyl group must be hydrogen. O The carbon of the carbonyl group is electrophilic.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Which of the following statements about the carbonyl group of an aldehyde is NOTTRUE?
O It can be oxidized to a carboxylic acid.
O It can be reduced to a carboxylic acid.
O At least one of the atorms in the carbonyl group must be hydrogen.
O The carbon of the carbonyl group is electrophilic.

A fellow lab student is attempting to identify his unknown organic compound by using the Tollens' test. He
adds Tollens' reagent to a sample of benzaldehyde and to his unknown. You notice that neither his
benzaldehyde or unknown sámple solution formed a silver precipitate. The student confidently proclaims
that his unknown must not be an aldehyde. Is he correct?
Yes, because his unknown solution failed to form a silver precipitate that indicates the presence of an aldehyde.
O Yes, because the Tollens' test only forms a silver precipitate in the presence of an aromatic aldehyde.
O No, because his positive control did not form a silver precipitate, therefore he should gently heat the samples to verify
the result.
No, because the Tollens' test only forms a silver precipitate in the presence of a methyl ketone.

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