The general formula for homologous series of haloalkanes is . 

$\mathrm{A}. {\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+1}\mathrm{X}$

$\mathrm{B}. {\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+1}$

$\mathrm{C}. {\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-1}$

(Enter your correct answer as $\mathrm{A}, \mathrm{B} \mathrm{or} \mathrm{C}$)

What is a homologous series? Explain with an example. 

Write the name of the following compound:

${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{OH}$

Identify and name the following compound.

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CHO}$.

Write the name of the following compound:

${\mathrm{CH}}_3-\mathrm{Cl}$

Observe the correlation in the first pair and complete the second pair.

${\mathrm{CH}}_3\mathrm{OH}$ : Methanol. : :${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}$ : _____.  

Identify and name of the following compound:

Draw the structures for the following:
2. Bromopentane

Write the name of the following compound: