3-bromopropane can undergo an SN1 reaction due to the stability of the tertiary carbocation that forms during the reaction.

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.

In PCl5, the phosphorus atom is sp3d hybridized, allowing it to form five bonds in a trigonal bipyramidal geometry.

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

All the given compounds contain a phenyl group (C6H5) as part of their structure.

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

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

2,3-butanediol has two chiral centers, leading to 4 stereoisomers, while the others have fewer.

CH3-COOH is a carboxylic acid because it contains the -COOH functional group.

2-butanol has a chiral center and can exist as two enantiomers, making it chiral.

Benzoyl chloride is a common electrophile used in Friedel-Crafts acylation, where it reacts with benzene to form an acylated product.

Iron commonly exhibits oxidation states of +2 and +3, with +2 being the most stable in many compounds.

Cyclopentene is a cyclic compound that contains a double bond, making it a cyclic alkene.

The functional group of alkenes is the carbon-carbon double bond represented as -C=C-.

2-butene can exist in two geometric forms: cis-2-butene and trans-2-butene. The correct answer is trans-2-butene.

C2H5Br is a haloalkane, as it contains a carbon chain with a bromine atom attached.

2,3-butanediol has two chiral centers but is superimposable on its mirror image, making it a meso compound.

The nitro group (-NO2) is a meta-directing group because it withdraws electrons from the aromatic ring, making the ortho and para positions less favorable for electrophilic attack.

A primary alcohol is one where the hydroxyl group (-OH) is attached to a carbon that is only connected to one other carbon. CH3CH2OH (ethanol) is a primary alcohol.

1-bromobutane is a primary alkyl halide because the carbon bonded to the bromine is attached to only one other carbon.

2-Butanol is a secondary alcohol because the hydroxyl group is attached to a carbon that is connected to two other carbons.

The compound CH3-CH2-NH-CH3 is a secondary amine as it has two alkyl groups attached to the nitrogen.

The -OH group is a strong activating group due to its ability to donate electron density to the aromatic ring.

Toluene is a stronger electrophile due to the electron-donating effect of the methyl group.

2-methylpropane is a structural isomer of butane, having the same molecular formula but a different structure.

2-methylpropane is a structural isomer of butane, both having the same molecular formula C4H10.

C4H10 is an alkane, as it follows the formula CnH2n+2, where n=4.

The compound CH3COOCH2CH3 contains an ester functional group, characterized by the -COO- linkage.

C2H5OC2H5 is an ether, characterized by an oxygen atom connected to two alkyl or aryl groups.