Chemistry 0620 · IGCSE · Naming organic compounds

Naming organic compounds — practice question

Five organic compounds have these displayed structures. Compound A has a four-carbon straight chain with only single bonds, and every carbon is attached to hydrogen atoms. Compound B has four carbon atoms with a carbon-carbon double bond between the second and third carbons, with hydrogen atoms attached. Compound C has four carbon atoms with a carbon-carbon double bond between the first and second carbons, with hydrogen atoms attached. Compound D has two carbon atoms joined by a single bond, and each carbon is bonded to a bromine atom and hydrogen atoms. Compound E has a chain of three carbon atoms, with bromine atoms attached to the first and last carbon atoms and hydrogen atoms attached.
(a(i))[1]

Which compound is butane?

(a(ii))[1]

Which two compounds are structural isomers of one another?

(a(iii))[1]

Which compound can be formed by reacting an alkene with bromine?

(a(iv))[1]

Which compound is a saturated hydrocarbon?

(a(v))[1]

Which compound has the empirical formula $\text{C}_2\text{H}_5$?

(a(vi))[1]

Name the two products formed when compound C undergoes complete combustion.

(b(i))[1]

Name the fraction that is the most viscous.

(b(ii))[1]

Name the fraction with the smallest molecules.

(b(iii))[1]

Name the fraction with the weakest attractive forces between molecules.

(b(iv))[1]

Name fraction X.

(b(v))[1]

What occurs at point Y on the diagram?

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