The structural formula of a hydrocarbon is given below.

Draw the structure of the first compound of the homologous series to which this hydrocarbon belongs.

The structural formula of some organic compounds are given below:

(i) ${\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{CO}-{\mathrm{CH}}_3$

(ii) ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{CHO}$

(iii) ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{OH}$

(iv) ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

a. Which of these is an alkane?
b. Write the structural formula of the position isomer of the third compound.
c. Which of the given compounds are functional isomers?
d. Write the structural formula of the chain isomer of the fourth compound.

Select the structural formula of the given compound from the box.

But-1-yne.

Petroleum is a mixture of different hydrocarbons.

Which is the hydrocarbon present in liquefied petroleum gas (LPG)?

Petroleum is a mixture of different hydrocarbons.

Which method is used for separating the components of petroleum?