Which reagent is more effective to convert but-2-enal to but-2-enol?

(a) KMnO4                              (b) NaBH4

(c) H2/Pt                                (d) K2Cr2O7/H2SO4

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Alcohols: Preparation, Physical and Chemical Properties
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23g of sodium react with CH3OH to give: 

1. 1 mole of O2                           2. 1/2 mole of H2

3. 1 mole of H2                           4. none of these

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Alcohols: Preparation, Physical and Chemical Properties
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Which of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?

(a) CH3CH(OH)CH3             (b) CH3CH2CH(OH)CH3

(c) CH3OH                          (d) CH3CH2OH

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Alcohols: Preparation, Physical and Chemical Properties
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Phenol and benzoic acid can be distinguished by:

1. aqueous NaHCO3                           

2. aqueous NaNO3

3. aqueous NaOH                               

4. conc. H2SO4

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Phenols: Preparation, Properties, Acidic Nature of Phenol
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Glycerol on oxidation with dil. HNO3 gives:

1. tartronic acid                               

2. mesoxalic acid

3. oxalic acid                                   

4. glyceric acid

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Alcohols: Preparation, Physical and Chemical Properties
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Ethyl Chloride is converted into diethyl ether by 

(a) Wurtz synthesis                (b) Grignard reaction

(c) Perkin's reaction                (d) Williamson's synthesis

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Which is an excellent antiseptic?

(a) Phenol                                    (b) Benzyl alcohol

(c) Benzaldehyde                          (d) Acetic acid

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Alcohols: Preparation, Physical and Chemical Properties
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The dehydration of neo-pentanol gives mainly:

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Alcohols: Preparation, Physical and Chemical Properties
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Which one of the following on oxidation gives a ketone?                   

1. Primary alcohol                      2. Secondary alcohol

3. Tertiary alcohol                      4. All of these

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Alcohols: Preparation, Physical and Chemical Properties
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In the following sequence the product (C) is: 

CH3CHOPdH2 (A) Na(B) CH3I(C)

1. alcohol                                 2. ether

3. alkene                                  4. none of these

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Alcohols: Preparation, Physical and Chemical Properties
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