Identify "A" and mention the name of the mechanism through which it is formed:
C2H5-O-C2H5, SN2
Solution: When ethanol (CH3CH2OH) reacts with concentrated sulfuric acid (H2SO4) under heat, an elimination reaction takes place, forming ethene (CH2=CH2). This is a classic example of dehydration (elimination of water) to form an alkene.
The mechanism involved is elimination, specifically E1 (unimolecular elimination), where a carbocation intermediate is formed, leading to the removal of a proton and the formation of a double bond.
Important Questions from Alcohols, Phenols and Ethers
Which isomerism is shown by the following pairs?
CH₃CH₂CH₂OH and CH₃CH₂OCH₃
Correct order of boiling points in the following is:
(A) CH3CHO
(B) CH3COOH
(C) CH3CH2OH
(D) CH3CH3
(E) CH3CH2Cl
Choose the correct answer from the options given below:
Identify allylic alcohol:
(A) CH2= CH–CH2OH
(B) CH3= CH–CH2OH
(C)
(D)
Choose the correct answer from the options given below:
In Kolbe's reaction, phenol undergoes:
When methyl bromide is treated with sodium tert-butoxide, the compound formed is:
