The major product of the following reaction is:

(a) a hemiacetal                 (b) an acetal

(c) an ether                       (d) an ester

 

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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What is formed when a primary alcohol undergoes catalytic dehydrogenation?                         

(a) Aldehyde           (b) Ketone          (c) Alkene            (d) Acid

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Alcohols: Preparation, Physical and Chemical Properties
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Diethyl ether absorbs oxygen to form:

(a) red colored sweet smelling compound

(b) acetic acid

(c) ether suboxide

(d) ether peroxide

 

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Alcohols: Preparation, Physical and Chemical Properties
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Fenton's reagent is:

1. H2O + FeSO4                     

2. H2O2 + FeSO4

3. H2O2 + ZnSO4                   

4. NaOH + FeSO4

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Alcohols: Preparation, Physical and Chemical Properties
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Propan-1-ol may be prepared by reaction of propene with                

(a) CH3COOH                                          (b) H3BO3

(c) B2H6/NaOH-H2O2                               (d) H2SO4/H2O     

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Alcohols: Preparation, Physical and Chemical Properties
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In the following reaction,                                       [2012]

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Alcohols: Preparation, Physical and Chemical Properties
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Arrange the following compounds in order of decreasing acidity:

(a) III>I>II>IV                          (b) IV>III>I>II

(c) II>IV>I>III                          (d) I>II>III>IV

 

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Phenols: Preparation, Properties, Acidic Nature of Phenol
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Power alcohol is a mixture of petrol and alcohol in the ratio:

1. 4:1                         

2. 1:4

3. 2:1                         

4. 1:2

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Alcohols: Preparation, Physical and Chemical Properties
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The formula for allyl alcohol is:

(a) CH3-CH=CHCl                                    (b) CH2=CHCH2OH

(c) CH2ClCH2CH3                                     (d) none of these

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Alcohols: Preparation, Physical and Chemical Properties
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The -OH group of an alcohol or the -COOH group of a carboxylic acid on can be replaced by -Cl using

(a) phosphorus pentachloride

(b) hypochlorous acid

(c) chlorine

(d) hydrochloric acid

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Alcohols: Preparation, Physical and Chemical Properties
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