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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Give a plausible explanation for the following: Why are amines less acidic than alcohols of comparable molecular masses? - Chemistry

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प्रश्न

Give a plausible explanation for the following:

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

रासायनिक समीकरण/संरचनाएँ
कारण बताइए

उत्तर

Loss of a proton from an amine gives an amide ion, while loss of a proton from alcohol gives an alkoxide ion.

\[\ce{R-NH2 -> R-NH– + H+}\]

\[\ce{R-O-H -> R-O^- + H+}\]

Since O is more electronegative than N, it will attract positive species more strongly in comparison to N. Thus, RO is more stable than RNH. Thus, alcohols are more acidic than amines. Conversely, amines are less acidic than alcohols.

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अध्याय 13: Amines - Exercises [पृष्ठ ४०२]

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एनसीईआरटी Chemistry [English] Class 12
अध्याय 13 Amines
Exercises | Q 14.1 | पृष्ठ ४०२

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