Preparation of phenol from cumene is -

1. Reduction Reaction

2. Oxidation reaction

3. Disproportionation Reaction

4. Ozonolysis

Subtopic:  Phenols: Preparation & Properties |
 68%
Level 2: 60%+
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The reagent used for the bromination of phenol to 2,4,6-tribromophenol is/are:

1. Bromine water
2. Br2, CS2
3. Br2, CCl4
4. AgBr

Subtopic:  Phenols: Preparation & Properties |
 84%
Level 1: 80%+
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Which of the following substituted phenols is the strongest acid?

1. 2.
3. 4.
Subtopic:  Phenols: Preparation & Properties |
 89%
Level 1: 80%+
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When benzenediazonium chloride is treated with water, the compound formed is : 

(1) C6H5COOH

(2) C6H5OH

(3) C6H6

(4) C6H5NH2

Subtopic:  Phenols: Preparation & Properties |
 80%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.

Cyclohexanol gives best yield of cyclohexene with -

1. conc.H3PO4

2. conc.HCl

3. conc.HBr

4. All of the above

Subtopic:  Alcohols: Preparation & Properties |
 79%
Level 2: 60%+
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Match the structures of the compounds given in Column I with the name of the compounds given in Column II.

Column I(Structure) Column II(Name)
A.   (i). Phenetole
B.  (ii). o-Cresol
C. (iii). Catechol
D. (iv).  Resorcinol

Codes:

A B C D
1. (ii) (iv) (i) (iii)
2. (iii) (i) (iv) (ii)
3. (i) (iv) (iii) (ii)
4. (iv) (iii) (ii) (i)
Subtopic:  Phenols: Preparation & Properties |
 84%
Level 1: 80%+
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Match the starting material in Column I with the products formed (Column II) in the reaction with HI.

Column I

Column II

A. 1.
B. 2.
C. 3.
D. 4.
5.
 
A B C D
1. 2 3 4 1
2. 3 1 5 2
3. 5 4 3 2
4. 4 5 2 1
Subtopic:  Ethers: Preparation & Properties, Uses |
 92%
Level 1: 80%+
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Match the items of Column-I with items given in Column-II.

Column-l Column-ll
A. Solvent used in perfumes I. Neutral ferric chloride 
B. Wood spirit  II. Glycerol 
C. Reagent used for detection of phenolic group III. Methanol
D. By-product of soap industry used in cosmetics IV. Ethanol

Codes:

A B C D
1. II III IV I
2. III I IV II
3. I IV III II
4. IV III I II
Subtopic:  Alcohols: Preparation & Properties |
 78%
Level 2: 60%+
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Match the reactions from Column-I with their corresponding descriptions from Column-II and select the correct option.

Column-l (Name of Reaction)

Column-ll (Description of Reaction)

A.

Reimer-Tiemann reaction 

I.

Conversion of phenol to o-hydroxysalicylic aid 

B.

Kolbe's reaction 

II.

Heated copper at 573K

C.

Conversion of 2° alcohol to a ketone 

III.

Reaction of an alkyl halide
with sodium alkoxide 

D.

Williamson's synthesis 

Iv.

Conversion of phenol to salicylaldehyde

Codes:

A B C D
1. II III IV I
2. III IV I II
3. I IV III II
4. IV I II III
Subtopic:  Ethers: Preparation & Properties, Uses |
 90%
Level 1: 80%+
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Select the correct option based on the statements given below:

Assertion (A): The addition reaction of water to but-1-ene in an acidic medium yields butan-1-ol.
Reason (R): Addition of water in an acidic medium proceeds through the formation of a primary carbocation.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Alcohols: Preparation & Properties |
 68%
Level 2: 60%+
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