What is the correct order of basic strengths of the given amines in aqueous medium?
A
NH3>C2H5NH2>(C2H5)2NH>(C2H5)3N
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B
NH3<C2H5NH2<(C2H5)2NH<(C2H5)3N
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C
NH3<C2H5NH2<(C2H5)3N<(C2H5)2NH
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D
C2H5NH2<(C2H5)2NH<(C2H5)3N<NH3
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Solution
The correct option is CNH3<C2H5NH2<(C2H5)3N<(C2H5)2NH The ease of donation of the lone pair of electrons for 2o amines is greater than 3o amines due to the bulkiness of ethyl group.