Shapes of Aromatic Organic Molecules; σ & π Bonds (CIE A Level Chemistry)

Benzene can exist as C₆H₆ or be substituted in a number of different ways to form aromatic compounds.

State the IUPAC name for compounds W, X and Y. 

State the IUPAC name for compound Z.

State the bond angle that is present in the benzene molecule.

In benzene, each of the carbon atoms is sp² hybridised.

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State the IUPAC name for the following aromatic compounds

compound X ..........................................................................

compound Y ......................................................................... 

Explain why the benzene ring is planar.

Compound Y can be formed from benzene. Outline the reagents for the two step reaction to formation of compound Y

step 1 .......................................................................................

step 2 ......................................................................................

State the bond angle that is present in the benzene molecule.

Explain why a molecule of benzene, C₆H₆ does not tend to react with bromine whereas hexene, C₆H₁₂, will react to form dibromohexane, C₆H₁₂Br₂. 

State the name of the mechanism that benzene will undergo if reacted with bromine in the presence of a halogen carrier to form bromobenzene, C₆H₅Br.