Fill in the blanks with the correct words from the brackets:

(a) Alkenes are the (i) …………… (analogous/homologous) series of (ii) …………… (saturated/unsaturated) hydrocarbons. They differ from alkanes due to the presence of (iii) …………… (double/single) bonds. Alkenes mainly undergo (iv) …………… (addition/substitution) reactions.

(b) The organic compound which undergoes substitution reaction is (v) …………… (C₂H₂, C₂H₄, C₁₀H₁₈, C₂H₆)

(c) Draw the structural formulae of the two isomers of Butane. Give the correct IUPAC name of each isomer.

Name:

(a) The saturated hydrocarbon containing two carbon atoms.

(b) An alcohol with three carbon atom.

(c) A triple bond hydrocarbon with two carbon atoms.

Methane is a greenhouse gas. Comment

Give the general formula of the alkanes.