The formula for allyl alcohol is- 

1. CH3-CH=CHOH                                  

2. CH2=CHCH2OH

3. HOCH2CH2CH3                                     

4. None of the above.

Subtopic:  Alcohols: Preparation & Properties |
 83%
Level 1: 80%+
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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 |
 83%
Level 1: 80%+
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Select the correct option based on statements below:

Assertion (A): The IUPAC name of the compoundis 2-ethoxy-2-methylethane.
Reason (R): In IUPAC nomenclature, ether is regarded as a hydrocarbon derivative in which a hydrogen atom is replaced by —OR or -OAr group
[where, R = alkyl group and Ar = aryl group].
 
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. (A) is False but (R) is True.
Subtopic:  Ethers: Preparation & Properties, Uses |
 61%
Level 2: 60%+
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The product A in the below mentioned reaction is:
 \(\xrightarrow[]{H_{2}O/H^{+}} \ \underset{(major)}{A} \ + \ \underset{(minor)}{B}\)        

1.   
2.  
3.   4.  
 

Subtopic:  Alcohols: Preparation & Properties |
 74%
Level 2: 60%+
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The value of C-O-C bond angle in ether molecule is:

1. 180° 2. 150°
3. 90° 4. 110°
Subtopic:  Ethers: Preparation & Properties, Uses |
 73%
Level 2: 60%+
Hints

Select the correct option based on the statements below:

Assertion (A):  The bond angle in ethers is slightly less than the angle of tetrahedral.
Reason (R): There is repulsion between the two bulky (— R) groups.
 
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. (A) is False but (R) is True.
Subtopic:  Ethers: Preparation & Properties, Uses |
 61%
Level 2: 60%+
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The proposed mechanism for hydration of ethene to yield ethanol is as follows:

The wrong step in the above mechanism is:

1. Step 1 2. Step 2
3. Step 3 4. Both steps 2 and 3
Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
Level 3: 35%-60%
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Propan-1-ol may be prepared by reaction of propene with -              

1. CH3COOH                                         

2. H3BO3

3. B2H6/NaOH-H2O2                               

4. H2SO4/H2O     

Subtopic:  Alcohols: Preparation & Properties |
 82%
Level 1: 80%+
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The reagent used in the conversion of the following reaction is:


 

1. \(\mathrm{NaBH}_4 \) 2. \(\mathrm{LiAlH}_4 \)
3. \(PCC \) 4. \(\mathrm{KMnO}_4\)
Subtopic:  Alcohols: Preparation & Properties |
 81%
Level 1: 80%+
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The reducing agent among the following is -

1. CrO3/H+

2. KMnO4

3. LiAlH4

4. O3

Subtopic:  Alcohols: Preparation & Properties |
 89%
Level 1: 80%+
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