Arenes, electrophilic substitution and diazonium compounds: แบบฝึกหัด

Which of the following is the correct systematic name for a compound with the structural formula \( CH_{3}CH(OH)CH_{2}CH_{3} \)?

A compound has the molecular formula \( C_{4}H_{10}O \). Which of the following functional groups could not be present in an isomer of this compound?

Identify the functional group present in a molecule that reacts with neutral iron(III) chloride solution to produce a characteristic purple colouration.

Explain why but-2-ene can exist as E/Z isomers, whereas but-1-ene cannot.

Give the systematic name for the aliphatic hydrocarbon with the molecular formula \(C_5H_{12}\) that contains a quaternary carbon atom.

A compound has the molecular formula \(C_4H_8O_2\). It could be a carboxylic acid or an ester.

(a) Name the functional groups present in butanoic acid and ethyl ethanoate.
(b) Describe a simple chemical test using sodium carbonate, \(Na_2CO_3\), to distinguish between these two compounds. Include the expected observation.

Nylon-6,6 is a synthetic polymer used in the textile industry.

(a) Identify the two monomers used to produce nylon-6,6 and name their functional groups.
(b) Name the type of polymerisation that occurs.
(c) Draw the repeating unit of nylon-6,6, clearly showing the amide link.