Alcohols Phenols And Ethers Question 38
Question: If there be a compound of the formula $ CH_3C{{(OH)}_3} $ which one of the following compounds would be obtained from it without reaction with any reagent
[CPMT 1983]
Options:
A) $ CH_3OH $
B) $ C_2H_5OH $
C) $ CH_3COOH $
D) HCHO
Show Answer
Answer:
Correct Answer: C
Solution:
$ CH_3-C<-\begin{matrix} OH \\ OH \\ OH \\ \end{matrix}\to CH_3-\overset{O}{\mathop{\overset{||}{\mathop{C}}}}-OH+H_2O $ If two or more $ -OH $ groups are present on carbon atom then it immediately looses water molecule and forms acid or aldehyde. Two $ -OH $ groups on the same carbon aldehyde is formed $ \underset{Unstable}{\mathop{R-CH<\begin{matrix} OH \\ OH \\ \end{matrix}}}\xrightarrow[-H_2O]{}\underset{Aldehyde}{\mathop{R-\underset{\underset{H}{\mathop{|}}}{\mathop{C}}=O}} $ Three $ -OH $ groups on the same carbon acid is formed. $ R-C<-\begin{matrix} OH \\ OH \\ OH \\ \end{matrix}\xrightarrow[-H_2O]{}R-C<\underset{acid}{\mathop{\begin{matrix} OH \\ O \\ \end{matrix}}} $
BETA
