The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is:

1. Acidic KMnO4

2. Alkaline K2Cr2O7

3. Chromium anhydride in glacial acetic acid

4. Pyridinium Chlorochromate

Subtopic:  Alcohols: Preparation & Properties |
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Absolute alcohol contains:

1. 40% H2O                         

2. 10% H2O

3. 5% H2O                           

4. 100% C2H5OH

Subtopic:  Alcohols: Preparation & Properties |
 60%
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Dialkyl sulphides are known as:

1. sulphonal                         

2. mercaptan

3. thioethers                       

4. thioesters

Subtopic:  Ethers: Preparation & Properties, Uses |
 60%
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The major product of the following reaction is-

1. a hemiacetal                 

2. an acetal

3. an ether                       

4. an ester

Subtopic:  Alcohols: Preparation & Properties |
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What is formed when a primary alcohol undergoes catalytic dehydrogenation?               

1. Aldehyde           

2. Ketone         

3. Alkene           

4. Acid

Subtopic:  Alcohols: Preparation & Properties |
 71%
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Diethyl ether absorbs oxygen to form:

1. red colored sweet smelling compound

2. acetic acid

3. ether suboxide

4. ether peroxide

 

Subtopic:  Alcohols: Preparation & Properties |
 63%
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Fenton's reagent is:

1. H2O + FeSO4                     

2. H2O2 + FeSO4

3. H2O2 + ZnSO4                   

4. NaOH + FeSO4

Subtopic:  Alcohols: Preparation & Properties |
 70%
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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%
From NCERT
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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 |
 75%
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The correct order of decreasing acidic strength of the above compounds is -

1. III>I>II>IV                         

2. IV>III>I>II

3. II>IV>I>III                         

4. I>II>III>IV

Subtopic:  Phenols: Preparation & Properties |
 90%
From NCERT
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