The general molecular formula, which represents the homologous series of alkanols is      

(a) CnH2nO2        (b) CnH2nO

(c) CnH2n+1O       (d) CnH2n+2O

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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R-COOHRCH2OH. This reduction cannot be done  by:

(a) NaBH4                               (b) Na + alcohol

(c) LiAlH4                                (d) all of these

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Alcohols: Preparation, Physical and Chemical Properties
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What mass of isobutylene is obtained from 37 g of tertiary butyl alcohol by heating with 20% H2SO4 at 363 K, if the yield is 65%?

1. 16 g

2. 18.2 g

3. 20 g

4. 22 g

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Alcohols: Preparation, Physical and Chemical Properties
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Glycol is prepared industrially by the following reactions:

(a) 

(b) 

(c) 

(d) none of the above

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Alcohols: Preparation, Physical and Chemical Properties
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How many isomers of C5H11OH will be primary alcohols?

1. 5

2. 4

3. 2

4. 3

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Alcohols: Preparation, Physical and Chemical Properties
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Phenol is less soluble in water. It is due to:

1. non-polar nature of phenol

2. acidic nature of -OH group

3. non-polar hydrocarbon part in it

4. none of the above

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Phenols: Preparation, Properties, Acidic Nature of Phenol
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The decreasing order of boiling points of 1°,2°,3° alcohol is:

1. 1°>2°>3°                             

2. 3°>2°>1°

3. 2°>1°>3°                             

4. none of these

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Alcohols: Preparation, Physical and Chemical Properties
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The boiling points of thio-ethers are .... than those of ether.

(a) lesser                                   

(b) equal

(c) higher                                   

(d) none of these

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Ethers: Preparation, Physical & Chemical Properties, Uses
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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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