Organic Chemistry: Arenes (Edexcel International A Level (IAL) Chemistry): Exam Questions

Methylbenzene reacts with a mixture of concentrated nitric acid and concentrated sulfuric acid to form 2,4,6‐ trinitromethylbenzene.

What is the number of peaks in the ¹³C NMR spectrum of methylbenzene?

What type of reaction takes place?

Which expression shows the mass in grams of 2,4,6‐trinitromethylbenzene formed from 10 g of methylbenzene if the yield of the reaction is 85%?

[M_r values: methylbenzene = 92       2,4,6‐trinitromethylbenzene = 227]

Benzene is sometimes represented by a Kekulé structure.

If this were the only structure of benzene, what would be the total number of isomers of dichlorobenzene?

What is the product when benzene reacts with fuming sulfuric acid?

Which of these could not be formed when excess benzene is heated with trichloromethane, CHCl₃, in the presence of an aluminium chloride catalyst?

Hydrogen bonds are formed when methylamine dissolves in water.

Which structure best represents a hydrogen bond between methylamine and water?

What is the molar mass, in g mol^–1, of the organic product when phenol reacts with excess bromine water?

The reaction of ethene with bromine occurs under normal laboratory conditions but the reaction of benzene with bromine to form bromobenzene requires heat and the presence of a catalyst.

The best explanation for the difference in reactivity is that the delocalised electrons in benzene