The compound CH3CHO is an aldehyde, characterized by the presence of the -CHO functional group.

Butan-2-one is a ketone as it has the carbonyl group (C=O) located between two carbon atoms.

Ketones can react with alcohols to form hemiacetals, which is a characteristic reaction.

Acetone (CH3COCH3) is a ketone.

Aldehydes can be prepared by the oxidation of primary alcohols.

Aldehydes can be synthesized by the hydration of alkynes.

The hydration of alkynes leads to the formation of ketones, especially when using a catalyst.

Tollens' test can be used to distinguish between aldehydes and ketones, as aldehydes reduce Tollens' reagent.

All of the listed methods can be used to prepare aldehydes.

Hydrogen gas (H2) can act as a reducing agent for aldehydes, converting them to alcohols.

H2 in the presence of palladium (Pd) is a reducing agent that can reduce ketones to alcohols.

The correct IUPAC name for CH3CHO is Ethanal.

Aldehydes contain the functional group -CHO, which is characterized by a carbonyl group (C=O) bonded to a hydrogen atom.

Acetone (propan-2-one) is the simplest ketone, with the formula (CH3)2CO.

Aldehydes are generally more reactive than ketones due to the presence of the hydrogen atom attached to the carbonyl carbon.

Ketones cannot form hydrogen bonds with themselves due to the absence of a hydrogen atom attached to the carbonyl carbon.

Sodium borohydride (NaBH4) is commonly used to reduce aldehydes to primary alcohols.

All of the mentioned reagents can be used to distinguish between aldehydes and ketones, as aldehydes can be oxidized while ketones cannot.

Potassium permanganate (KMnO4) is a strong oxidizing agent that can oxidize aldehydes to carboxylic acids.

Pyridinium chlorochromate (PCC) is a mild oxidizing agent that selectively oxidizes primary alcohols to aldehydes.

Sodium borohydride (NaBH4) is commonly used to reduce aldehydes to primary alcohols.

All of the mentioned reagents can be used to test for aldehydes.

All of the above reagents can reduce an aldehyde to a primary alcohol.

All of the mentioned reagents can be used to distinguish between aldehydes and ketones, as aldehydes reduce these reagents while ketones do not.