Draw the structure for each compound.
c. para-diethylbenzene

Verified step by step guidance

1. Identify the benzene ring as the base structure, which is a hexagonal ring with alternating double bonds.
2. Recognize that 'para' indicates that the substituents are on opposite sides of the benzene ring, specifically at the 1,4-positions.
3. Identify the substituents as 'diethyl', meaning there are two ethyl groups (C2H5) attached to the benzene ring.
4. Attach one ethyl group to the first carbon of the benzene ring and the second ethyl group to the fourth carbon, ensuring they are opposite each other.
5. Verify the structure by ensuring the benzene ring maintains its aromaticity and the ethyl groups are correctly positioned at the para positions.

Key Concepts

Benzene Structure

Benzene is a six-carbon aromatic hydrocarbon with a ring structure, characterized by alternating double bonds. Each carbon atom is bonded to one hydrogen atom, resulting in the molecular formula C6H6. The stability of benzene arises from resonance, where the electrons are delocalized across the ring, making it less reactive than alkenes.

Substituted Aromatic Compounds

Substituted aromatic compounds are formed when one or more hydrogen atoms in a benzene ring are replaced by other groups, known as substituents. The position of these substituents is crucial for naming and drawing the structure. In para-substituted compounds, the substituents are located opposite each other on the benzene ring, which influences the compound's chemical properties.

Diethyl Group

The diethyl group refers to two ethyl groups (C2H5) attached to a benzene ring. In para-diethylbenzene, the two ethyl groups are positioned at the 1 and 4 carbon atoms of the benzene ring. Understanding the structure of the diethyl group is essential for accurately drawing the compound and predicting its physical and chemical properties.