Mark the correct order of decreasing acid strength of the following compounds. 

(I)  (II)
(III) (IV)
(V)


1. (V) > (IV) > (II) > (I) > (III)

2. (II) > (IV) > (III) > (I) > (V)

3. (IV) > (V) > (III) > (II) > (I)

4. (V) > (IV) > (III) > (II) > (I)

Subtopic:  Phenols: Preparation & Properties |
 91%
Level 1: 80%+
Hints

Which option shows the correct increasing order of reactivity of the following compounds with HBr/HCl?
  

1.  I < II < III 

2.  II <I < III

3.  II < III < I 

4.  III < II < I 

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 68%
Level 2: 60%+
Hints

Arrange the following compounds in increasing order of boiling point.

Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol

1.  Propan-1-ol, butan-2-ol, butan-1-ol, pentan-1-ol

2.  Propan-1-ol, butan-1-ol, pentan-1-ol ,butan-2-ol

3.  Butan-2-ol,propan-1-ol, butan-1-ol, pentan-1-ol

4.  Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol

Subtopic:  Alcohols: Preparation & Properties |
 74%
Level 2: 60%+
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Reagents used to convert RCHO into  RCH2OH among the following are:

(a) H2 /Pd or Pt

(b) LiAIH4

(c) NaBH4

(d) Reaction with RMgx followed by hydrolysis


1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (a, b, d)

Subtopic:  Alcohols: Preparation & Properties |
 77%
Level 2: 60%+
Hints

Reaction(s) among the following can yield phenol:

(a)
(b)
(c)
(d)


Choose the correct option
1. (a, b, c)
2. (b, c, d)
3. (a, c, d)
4. (a, b, d)

Subtopic:  Phenols: Preparation & Properties |
 76%
Level 2: 60%+
Hints

Which of the following reagents can be used to oxidize primary alcohols to aldehydes?

I.  CrO3 in anhydrous medium

II.  KMnO4 in acidic medium

III.  Pyridinium chlorochromate

IV.  Heat in the presence of Cu at 573K

Choose the correct option:
1. (I, II, III)
2. (II, III, IV)
3. (I, III, IV)
4. (I, II, IV)

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 79%
Level 2: 60%+
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Phenol and ethanol can be differentiated through their distinct reactions with:

I. Br2/water     

II. Na     

III. Neutral FeCl3      

Choose the correct option:
1. I, II
2. II, III
3. I only
4. I, III

Subtopic:  Phenols: Preparation & Properties |
 69%
Level 2: 60%+
Hints

Which of the following are benzylic alcohols?

I. 
II. 
III. 
IV. 

Choose the correct option:

1. (I, II)
2. (II, III)
3. (III, IV)
4. (I, IV)

Subtopic:  Alcohols: Preparation & Properties |
 82%
Level 1: 80%+
Hints

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%+
Hints

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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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