Advertisements
Advertisements
प्रश्न
Mark the correct increasing order of reactivity of the following compounds with HBr/HCl.
| (a) | ![]() |
| (b) | ![]() |
| (c) | ![]() |
विकल्प
a < b < c
b < a < c
b < c < a
c < b < a
Advertisements
उत्तर
b < c < a
Explanation:
It is type of nucleophilic substitution reaction followed by SN1 mechanism. SN1 mechanism depends on the stability of carbonation. Presence of electron-withdrawing group will decrease the stability of carbocation.
APPEARS IN
संबंधित प्रश्न
Write the mechanism of the following reaction:

Write the mechanism of the following reaction :

Give the equation of the following reaction:
Oxidation of propan-1-ol with alkaline KMnO4 solution.
Give the equation of the following reaction:
Dilute HNO3 with phenol.
Name the reagent used in the following reaction:
Oxidation of a primary alcohol to carboxylic acid.
Which of the following are used to convert RCHO into RCH2OH?
(i) H2/Pd
(ii) LiAlH4
(iii) NaBH4
(iv) Reaction with RMgX followed by hydrolysis
Which of the following is not true in case of reaction with heated copper at 300°C?
Lucas test is done to differentiate between ____________.
Primary and secondary alcohols on the action of reduced copper give:
\[\ce{CH3CH2OH}\] can be converted into \[\ce{CH3CHO}\] by ______.
Identify the secondary alcohols from the following set:
- \[\ce{CH3CH2CH(OH)CH3}\]
- \[\ce{(C2H5)3COH}\]


Name the factors responsible for the solubility of alcohols in water.
Suggest a reagent for the following conversion.

Ethers can be prepared by Williamson synthesis in which an alkyl halide is reacted with sodium alkoxide. Di-tert-butyl ether can’t be prepared by this method. Explain.
Why is the C – O – H bond angle in alcohols slightly less than the tetrahedral angle whereas the C – O – C bond angle in ether is slightly greater?
Assertion: Bond angle in ethers is slightly less than the tetrahedral angle.
Reason: There is a repulsion between the two bulky (–R) groups.
Which of the following alcohols will not undergo oxidation?
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.



