Why is ethanol less acidic than water? from Chemistry Alcohols,

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 Multiple Choice QuestionsShort Answer Type

71. Arrange the following compounds in increasing order of boiling point and account for the order:
(a) 1-pentanol, (b) 2-methyl-2-butanol, (c) 3-methyl-butanol-2.
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72.

Why is ethanol less acidic than water?


Ethanol is less acidic than water because of the electron donating nature of the alkyl group attached to the oxygen which destabilizes the hydroxide ion and make it tougher for the oxygen to donate the proton. Hence, water is more acidic than ethanol.


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73.

Compare the acidity of Cl—CH2 CH2OH and CH3CH2OH. Explain.

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74.

Arrange the following in order of decreasing basic strength:
(CH3)3(CO, CH3O, (CH3)2CHO

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75.

Compare and explain the relative Bronsted basicities of 1°, 2° and 3° alcohols in the liquid state.

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76.

Give one example of a reaction to show that alcohol acts as a Bronsted base.

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77.

What happens when ethanol reacts with Na metal? Name the products formed.

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78.

Arrange the following alcohols in order of increasing reactivity towards Na metal:

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79.

Explain why sodium (Na) may be used to remove the last trates of H2O from benzene but not from ethanol?

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80.

Give the major product of the reaction of ethanol with:
(i) Ethanoic anhydride (CH3CO)2O.
(ii) Ethanol chloride in the presence of pyridine.

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