Which is not an alcohol?

1. CH2=CHCH2OH                            2. CH2OHCH2OH

3. C6H5CH2OH                                 4. C6H5OH

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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The boiling point of p-nitrophenol is higher than that of o-nitrophenol because                   

(a) NOgroup at p-position behaves in a different way from that at o-position

(b) intramolecular hydrogen bonding exists in p-nitrophenol

(c) there is intermolecular hydrogen bonding in p-nitrophenol

(d) p-nitrophenol has a higher molecular weight than o-nitrophenol

Concept Questions :-

Phenols: Preparation, Properties, Acidic Nature of Phenol
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Which of the following compund is oxidised to prepare methyl ethyl ketone?

(a) 2-propanol                               (b) 1-butanol

(c) 2-butanol                                 (d) tert-butyl alcohol

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Rectified spirit contains:

1. 75.0 % alcohol                           2. 85.5% alcohol

3. 95.6 % alcohol                           4. 100.0% alcohol

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Reaction  of  with RMgX leads to formation of                       

(a) RCHOHR                                (b) RCHOHCH3

(c) RCH2CH2OH                          (d) >RRCHCH2OH

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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Increasing order of acidic strength among p-methoxy phenol (I), p-methyl phenol (II) and p-nitrophenol (III) is                                                             

(a) III, I, II              (b) II, I, III            (c) III, II, I          (d) I, II, III   

Concept Questions :-

Phenols: Preparation, Properties, Acidic Nature of Phenol
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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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