If the number of carbon atoms in the molecular formulae of alkenes is denoted by ‘n’, what will be the number of hydrogen atoms?

What would be the general formula for the molecular formulae of the members of the homologous series of alkanes? What would be the value of ‘n’ for the first member of this series?

The general molecular formula for the homologous series of alkynes is ${\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2}$. Write down the individual molecular formulae of the first, second and third members by substituting the values 2,3 and 4 respectively for ‘n’ in this formula.

Draw three structural formulae having molecular formula ${\mathrm{C}}_5{\mathrm{H}}_{12}$.

Give the names n-pentane, i-pentane and neopentane to the structural formulae of ${\mathrm{C}}_5{\mathrm{H}}_{12}$.

Draw all the possible structural formulae having molecular formula ${\mathrm{C}}_6{\mathrm{H}}_{14}$. Give names to all the isomers

Complete the table by writing their IUPAC names in the third column.