R-CHO + H2 RCH2OH,

The catalyst used in the above reaction is -

1. Ni                                         

2. Pd

3. Pt                                         

4. All of above.

Subtopic:  Alcohols: Preparation & Properties |
 92%
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Methyl alcohol on oxidation with acidified K2Cr2O7 gives:

1. CH3COCH3                           

2. CH3CHO

3. HCOOH                                   

4. CH3COOH

Subtopic:  Alcohols: Preparation & Properties |
 65%
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The best method to prepare cyclohexene from cyclohexanol is by using:

1. conc. HCl + ZnCl2 2. conc. H3PO4
3. HBr 4. conc. HCl
Subtopic:  Alcohols: Preparation & Properties | Mechanism of Dehydration, Methanol & Ethanol |
 69%
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Which of the following is most acidic?

1. p-cresol                               

2. p-chlorophenol

3. p-nitrophenol                       

4. p-aminophenol

Subtopic:  Alcohols: Preparation & Properties |
 90%
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ZPCl5XAlc.KOHY2. H2O; boil1. Conc. H2SO4Z is:

1. CH3-CH2-CH2-OH

2. CH3-C|H-CH3
            OH

3. (C2H5)3C-OH

4. CH3-CH=CH2

Subtopic:  Alcohols: Preparation & Properties |
 59%
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The alkyl halide is converted into an alcohol by 

1. addition                           

2. substitution

3. dehydrohalogenation         

4. elimination

Subtopic:  Alcohols: Preparation & Properties |
 79%
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Glycerol on warming with excess of HI:

1. 2-iodopropane

2. 1-iodopropane

3. 1,2,3-tri-iodopropane

4. none of the above

Subtopic:  Alcohols: Preparation & Properties |
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When 2-butanol is passed over heated copper at 573 K, it undergoes dehydrogenation to form:

1. 2-Butene                                         

2. Butanone

3. Butyraldehyde                                 

4. 1-Butene

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
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The compound having lowest boiling point among the following is -

1. Phenol                                 

2. o-Nitrophenol

3. m-Nitrophenol                       

4. p-Nitrophenol

Subtopic:  Phenols: Preparation & Properties |
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Oxidation of 2-propanol by K2Cr2O7 and dilute H2SO4 leads to the formation of:

1. Propanal                     

2. Propanoic acid

3. Methanoic acid             

4. Propanone

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 62%
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