Test: MCQs (One or More Correct Option): Alcohols, Phenols & Ethers | JEE Advanced

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This mock test of Test: MCQs (One or More Correct Option): Alcohols, Phenols & Ethers | JEE Advanced for JEE helps you for every JEE entrance exam. This contains 7 Multiple Choice Questions for JEE Test: MCQs (One or More Correct Option): Alcohols, Phenols & Ethers | JEE Advanced (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: MCQs (One or More Correct Option): Alcohols, Phenols & Ethers | JEE Advanced quiz give you a good mix of easy questions and tough questions. JEE students definitely take this Test: MCQs (One or More Correct Option): Alcohols, Phenols & Ethers | JEE Advanced exercise for a better result in the exam. You can find other Test: MCQs (One or More Correct Option): Alcohols, Phenols & Ethers | JEE Advanced extra questions, long questions & short questions for JEE on EduRev as well by searching above.

*Multiple options can be correct

QUESTION: 1

The reaction of with HBr gives (1998 - 2 Marks)

Solution:

The mechanism of this reaction is represented as follows.

*Multiple options can be correct

QUESTION: 2

The ether when treated with HI produces (1999 - 3 Marks)

Solution:

TIPS/Formulae :
The aromatic ethers are cleaved to give phenol as one of the products.

*Multiple options can be correct

QUESTION: 3

In the reaction the intermediate (s) is (are) (2010)

Solution:

Product of reaction of phenol with NaOH/Br2 is sodium salt of 2,4,6-tribromophenol. Hence, species (I), (II), (III) are formed as intermediate.

*Multiple options can be correct

QUESTION: 4

The major product(s) of the following reaction is(are) (JEE Adv. 2013)

A.
P
B.
Q
C.
R
D.
S

Solution:

*Multiple options can be correct

QUESTION: 5

The correct combination of names for isomeric alcohols with molecular formula C₄H₁₀O is/are (JEE Adv. 2014)

A.
Tert-butanol and 2-methylpropan-2-ol
B.
Tert-butanol and 1, 1-dimethylethan-1-ol
C.
n-butanol and butan-1-ol
D.
Isobutyl alcohol and 2-methylpropan-1-ol

Solution:

Isomeric alcohols with molecular formula C₄H₁₀O

*Multiple options can be correct

QUESTION: 6

The reactivity of compound Z with different halogens under appropriate conditions is given below: (JEE Adv. 2014)

The observed pattern of electrophilic substitution can be explained by

A.
The steric effect of the halogen
B.
The steric effect of the tert-butyl group
C.
The electronic effect of the phenolic group
D.
The electronic effect of the tert-butyl group

Solution:

—OH group is strongly activating and o, p-directing due to +M effect. Thus positions a, b and c are the sites for attack by an electrophile. However, sites b and c are not preferred by bulky electrophile due to steric crowding. Thus more bulky electrophile (like I₂) can attack only site a, which is least sterically hindered, a bit smaller electrophile (Br₂) can attack at sites a and also b (relatively less sterically hindered site) and the smallest electrophile (Cl₂) can attack all the three sites, viz., a, b and c (most sterically hindered site).