Alkynes may be represented by the general formula:

Identify and name the functional groups present in the following compounds.
$(a)$ $CH_3-CO-CH_2-CH_3$
$(b)$ $CH_3-CH_2-CH=CH_2$

The heteroatoms present in $CH_{3}-CH_{2}-O-CH_{2}-CH_{2}Cl$ are:
$(i)$ oxygen
$(ii)$ carbon
$(iii)$ hydrogen
$(iv)$ chlorine

Which of the following is not a straight chain hydrocarbon?

What are hydrocarbons? Give examples.

The general formula of three compounds $A, B$ and $C$ is $C_{n}H_{2n}$. $B$ has the highest boiling point and $C$ has the lowest boiling point.
$(i)$ Mention the type of compound $A, B$ and $C$.
$(ii)$ Which of these has the minimum number of carbon atoms?
$(iii)$ Name the homologous series to which $A, B$ and $C$ belong.