The structural formulas for an aldehyde and a ketone containing as few carbon atoms as possible are to be drawn. Concept introduction: A carbonyl group has a carbon atom that is bonded to an oxygen atom through a double bond and single bonded to two other carbon atoms respectively. Aldehydes and ketones contain carbonyl functional group in their parent chain and are named by adding suffix –al and –one to the name of the parent alkane .

Question

Both aldehydes and ketones contain carbonyl groups. In aldehydes, the carbonyl carbon atom is bonded to a hydrogen atom, whereas in ketones, the carbonyl carbon atom is bonded to another carbon atom. Select the true statements about aldehydes and ketones. - Ketones have lower boiling points than alcohols of similar size. - Aldehydes contain a carbon–oxygen double bond. - Butanal has a higher boiling point than 2-butanol. - Aldehydes with more than five carbon atoms are soluble in water, but not organic solvents. - Both aldehydes and ketones can hydrogen bond with water molecules. - Propanal is a gas at room temperature, whereas formaldehyde (methanal) is a liquid at room temperature.

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Question

Chapter 14, Problem 14.2E

Interpretation Introduction

Interpretation:

The structural formulas for an aldehyde and a ketone containing as few carbon atoms as possible are to be drawn.

Concept introduction:

A carbonyl group has a carbon atom that is bonded to an oxygen atom through a double bond and single bonded to two other carbon atoms respectively.

Aldehydes and ketones contain carbonyl functional group in their parent chain and are named by adding suffix –al and –one to the name of the parent alkane.

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