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However the enthalpy change valuse for benzene was found to be...? This means benzene must be...?

Arenes are...?

A benzene ring in which one hydrogen atom has been substituted for another group is called...? It has the formula...?

Benzene rings can be fused together to give ___ __ __, where the rings join they __ a pair of carbon atoms?

In fused rings systems we draw the rings with __ __ to show that the delocalisation...?