The general formula of the alkanes is \({C_n}{H_{2n + 2}}\). They are insoluble in water. The names, molecular formula and the structural formula of the first eight alkanes must be learned.

The longest unbranched chain containing the functional group is the parent molecule, or simply the longest unbranched chain for alkanes. Remember that, the longest chain can go round a bend.

(colorless) (purple) (colorless) (brown ppt.) Reaction of an alkene with aqueous potassium permanganate results in addition of two hydroxyl groups to each side of the double bond to form a glycol. To ...