Question
The general molecular formula, which represents the homologous series of alkanols is
A.
$${C_n}{H_{2n}}{O_2}$$
B.
$${C_n}{H_{2n}}O$$
C.
$${C_n}{H_{2n + 1}}O$$
D.
$${C_n}{H_{2n + 2}}O$$
Answer :
$${C_n}{H_{2n + 2}}O$$
Solution :
Alkanols are the derivatives of alkanes which are derived by the replacement of $$-H$$ of alkanes with $$-OH$$ (hydroxyl groups).
\[\underset{\text{Alkanes}}{\mathop{{{C}_{n}}{{H}_{2n+2}}}}\,\xrightarrow[+OH]{-H}\underset{\text{Alkanols}}{\mathop{{{C}_{n}}{{H}_{2n+1}}}}\,OH\,\,\text{or}\,\,{{C}_{n}}{{H}_{2n+2}}O\]