Lipids, particularly triglycerides, are primarily responsible for energy storage in cells.

CH3-CO-CH3 is a ketone because it has a carbonyl group (C=O) flanked by two carbon atoms.

The hydroxyl group (-OH) is the functional group characteristic of alcohols.

The addition of HBr to an alkene results in the formation of an alkyl halide.

The reaction between an alcohol and a carboxylic acid forms an ester through a condensation reaction.

Dehydration of an alcohol results in the formation of an alkene by the elimination of water.

Alkenes are characterized by the presence of a carbon-carbon double bond, which is the alkene functional group.

Alkynes are characterized by the presence of a triple bond between carbon atoms.

All amino acids contain a carboxylic acid group (-COOH) along with an amino group (-NH2).

Amino acids contain both an amino group and a carboxyl group.

Carboxylic acids contain the carboxyl functional group (-COOH), which is a combination of a carbonyl and a hydroxyl group.

Phenols contain a hydroxyl group (-OH) directly attached to an aromatic ring.

The compound contains a benzaldehyde functional group (aldehyde) along with hydroxy and methoxy substituents.

The compound CH3-CH2-COOH contains a carboxylic acid functional group, characterized by the -COOH group.

The compound contains a carbonyl group (C=O) between two carbon atoms, classifying it as a ketone.

The compound contains a carboxylic acid functional group (-COOH) at the end of the carbon chain.

The compound CH3CH2COOH contains a carboxylic acid functional group, characterized by the -COOH group.

The amino group (-NH2) attached to the alpha carbon contributes to the chirality of amino acids.

Tertiary alkyl halides favor the S_N1 mechanism due to steric hindrance, leading to the formation of a carbocation intermediate.

The reaction will proceed via the SN1 mechanism due to the tertiary carbon, which stabilizes the carbocation intermediate.

Electrophilic aromatic substitution primarily follows a mechanism similar to SN1, involving the formation of a carbocation intermediate.

The reaction of alkenes with bromine involves an electrophilic addition mechanism, where the alkene acts as a nucleophile and attacks the electrophilic bromine molecule.

PCl5 has a trigonal bipyramidal geometry due to the sp3d hybridization of phosphorus, accommodating five bonding pairs.

2-hexene has a double bond that allows for cis and trans configurations.

2-butanol has a chiral center and can exist as two enantiomers, thus exhibiting optical isomerism.

Tertiary alkyl halides are most favorable for E2 reactions, but primary and vinyl halides can also undergo E2 under certain conditions.

Benzene can undergo electrophilic substitution reactions due to its stable aromatic system, while the other compounds cannot.

In CH3OH (methanol), the carbon atom is sp3 hybridized, forming four sigma bonds with three hydrogens and one hydroxyl group.

C6H5OH is phenol, which contains a hydroxyl group (-OH) directly attached to a benzene ring.

CH3-CH2-NH2 contains an amine functional group (-NH2), which is characteristic of amines.