Alcohol, Phenol and Ether Test

Result

Alcohol, Phenol and Ether Test - 21

Score
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Weekly Quiz Competition

Question 1
1 / -0

Only One Option Correct Type
Direction (Q. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.
Q.
The most appropriate reagents that can bring about the following transformation is

A
KMnO₄/NaOH(aq)

B
H₂SO₄(aq)/heat

C
Br₂ -H₂O then NaOH

D
CF₃CO₃H then H₂SO₄(H₂O)

Solution

Epoxide upon hydrolysis gives anti, vicinal diois.
Question 2
1 / -0

Which major organic product is formed in the following reaction ?

A

B

C

D

Solution

Epoxide undergo nucleophilic attack of NH₃ at less substituted α-carbon giving anti hydroxy amine.
Question 3
1 / -0

The major organic product formed in the reaction given below is

A

B

C

D

Solution
Question 4
1 / -0

In the following hydrolysis reactio, the major final product is

A

B

C

D

Solution

On protonated epoxide, nucleophilic attack occur at α-carbon Where more stable carbocation could be formed.
Question 5
1 / -0

In the reaction given below,
The correct deduction concerning X and Y is

A
Both X and Y are meso isomers

B
X is meso isomer while Y is racemic mixture

C
X is racemic mixture while Y is meso

D
Both X and Y are racemic mixture

Solution
Question 6
1 / -0

An alkene on treatment with meta chloro perbenzoic acid undergoes epoxidation reaction to give oxirane. What is the correct order of increasing reactivity of the following in the above mentioned epoxidation reaction?

A
I < II < III < IV

B
IV

C
IV < I < II < III

D
III < II < IV < I

Solution

Epoxidation is an example of electrophilic ad dition at olefin ic bonds. Therefore, greater the electron density at olefinic bond, greater its reactivity. Electron donating groups increases reactivity while electron withdrawing group s like — CF₃ decreases reactivity.
Question 7
1 / -0

Which of the following compound gives more than one oxirane upon epoxidation with Ag₂O/heat?

A

B

C

D

Solution

It gives racemic mixture of oxiranes.
Question 8
1 / -0

The reaction given beiow that gives oxirane as the major organic product is

A

B

C

D

Solution