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  • Give plausible explanation for each of the following: (i) Why are amines less acidic than alcohols of comparable molecular masses?

13.14     Give a plausible explanation for each of the following:

                    (i) Why are amines less acidic than alcohols of comparable molecular masses?

Answers (1)

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Protonation of amines gives-      RNH_{2}\rightarrow RNH^{-}+H^{+}  (amide ion)
protonation of alcohol gives- R-OH\rightarrow RO^{-}+H^{+}   (alkoxide ion)

the negative charge is easily accommodated by O atom because it is more electronegative than N atom. So, the amide ion is less stable than the alkoxide ion. Hence amines are less acidic than alcohols.

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manish

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