Ethers are not distilled to dryness for fear of explosion. This is due to formation of:

1. oxides                             

2. alcohol

3. ketones                           

4. peroxides

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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In the following reaction,                                               

H+/Heat A           +              B

                                                                       (Major product)      (Minor product)

II.  Ain absence of peroxideHBr, dark C             +            D

                             (Major product)         (Minor product)

The major products A and C are respectively

CH3 (d) CH2-C-CH2-CH3 and CH CH2-CH-CH2-CH Br

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Isopropyl alcohol and n-propyl alcohol are:

1. position isomers                                2. chain isomers

3. functional isomers                              4. none of these

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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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

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Absolute alcohol contains:

(a) 40% H2O                         (b) 10% H2O

(c) 5% H2O                           (d) 100% C2H5OH

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Dialkyl sulphides are known as:

(a) sulphonal                         (b) mercaptan

(c) thioethers                        (d) thioesters

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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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

Concept Questions :-

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

 

Concept Questions :-

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

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Difficulty Level: