Benzene

UNFINISHED

Chemical formula of benzene

C₆H₆

Physical evidence for benzene

All bond lengths and angles are the same.

Chemical evidence hydrogenation

Benzene is more stable than expected

Less energy is released when hydrogenation happens.

Stabilisation energy of benzene

150 kJ mol ^-1

Chemical evidence double bonds

Benzene does not undergo the reactions expected for a molecule with double bonds

Doesn’t undergo any addition reactions. Instead, it undergoes substitution

Bromine as evidence

When bromine water is added to colourless benzene liquid, it remains orange, unlike other unsaturated compounds.