Alcohol, Phenol and Ether Test

Result

Alcohol, Phenol and Ether Test - 24

Score
-
out of -
Rank
-
out of -

TIME Taken - -

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Weekly Quiz Competition

Question 1
1 / -0

x is moles of HIO₄ consumed

A
x = 3

B
x = 2

C
x = 4

D
x = 1

Solution
Question 2
1 / -0

Product (B) is -

A

B

C

D

Solution
Question 3
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; Product (A) is -

A

B

C

D

Solution
Question 4
1 / -0

Product of above reaction is obtained by

A
Racemic mixture

B
Diastereomers

C
Meso

D
Optically-active product

Solution
Question 5
1 / -0

The structure of the product formed in the reaction given below is -

A

B

C

D

Solution
Question 6
1 / -0

, Products obtained in the above reaction are -

A
HCHO, HCO₂H

B
HCHO, 2HCO₂H

C
CO₂, 2HCO₂H

D
CO₂, HCHO, HCO₂H

Solution
Question 7
1 / -0

+ 4HIO₄ ¾→, Products obtained are
Aldo pentose

A
4HCO₂H, HCHO

B
4CH₂O, HCO₂H

C
CO₂, 4HCHO

D
CO₂, 3HCO₂H, HCHO

Solution
Question 8
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Which of the following compound gives 2HCHO, CO₂, 2HCO₂H when oxidisized by periodic acid

A

B

C

D

Solution
Question 9
1 / -0

,
What is the maximum value of (x) ?

A
1

B
2

C
3

D
4

Solution
Question 10
1 / -0

An ether is more volatile than an alcohol having the same molecular formula. This is due to

A
dipolar character of ethers

B
alcohols having resonance structures

C
inter-molecular hydrogen bonding in ethers

D
inter-molecular hydrogen bonding in alcohols

Solution

The correct answer is Option D.
An ether is more volatile than an alcohol having the same molecular formula. This is due to intermolecular hydrogen bonding in alcohols. In alcohols, H atoms are attached to electronegative O atoms. Due to this, H atom of −OH group of one alcohol molecule forms a hydrogen bond with the O atom of −OH group of the second alcohol molecule. This results in the intermolecular association. It increases the boiling point and decreases the volatility of alcohol. Such intermolecular hydrogen bonding is not possible in others as in ethers, H atoms are not attached to an electronegative O atom.
Question 11
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In the given reaction :
CH₃_ (a) + (b)
(a) and (b) respectively be -

A
CH₃CHO and CH₃CHO

B
CH₃COCH₃ and CH₃CHO

C
CH₃COCH₃ and CH₃COCH₃

D
CH₃COOH and CH₃COCH₃

Solution
Question 12
1 / -0

;
Identify the A.

A

B

C

D

Solution
Question 13
1 / -0

Ph–CH₂–Cl (A) (B) (C)
product (C) is -

A
Ph–CH₂––O–CH₃

B
Ph–—CH₃

C

D

Solution
Question 14
1 / -0

Ph––CH₂––O–Et (A) (B)
Product (B) is -

A
Ph––H

B
Ph––CH₃

C
Ph–CH₂––OH

D
Ph–CO₂H

Solution
Question 15
1 / -0

R––O–H+R₁–OH R––O–R,
In above esterification reaction rate of reactin is maximum, when R₁–OH is -

A
1º alcohol

B
CH₃OH

C
2º alcohol

D
None

Solution

Order of alcohal towards esterification
CH₃–OH > 1°alcohal > 2°alcohal > 3°alchoal.