4 c) Alkanes

Question 1

Alkanes

Answer 1

A homologous series of hydrocarbons in which all carbons are joined with single covalent bonds. Saturated compounds with the general formula CnH2n+2.

Question 2

Saturated compound

Answer 2

A compound containing only carbon-carbon single bonds.

Question 3

Structural isomers

Answer 3

Molecules with the same molecular formula, but different structural formulae.

Question 4

Substitution

Answer 4

A reaction in which an atom or groups of atoms in a molecule is replaced by a different atom or group of atoms. (e.g. when alkanes react with halogens in the presence of ultraviolet radiation/light, the hydrogen atoms in the alkanes are replaced by halogen atoms)

Question 5

Mono-substitution

Answer 5

A substitution reaction in which only one hydrogen atom in an alkane is replaced by a halogen atom.

Question 6

Straight chain

Answer 6

A molecule with no branches in its molecular structure.