InterviewSolution
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InterviewSolution
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The correct order of basicity of amines in water is:A. `(CH_3)_2NHgt(CH_3)_3NgtCH_2NH_2`B. `CH+3NH_2gt(CH_3)_3NHgt(CH_3)_3N`C. `(CH_3)_3Ngt(CH_3)_2NHgt(CH_3NH_2`D. `(CH_3)_3NgtCH_3NH_2gt(CH_3)_2NH` |
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Answer» Correct Answer - A Basicity of amines increase with increase in number of `-CH_3` groups (or any group which cause `+I` effect), due to increase in electron density on N atom. As a rule, th basicity of t-amine should be more than that of s-amine, but actually it is found to be lesser than s-amines, this is due to stearic hindrance of bulkier alkyl groups, which decreases the availability of line pair of electron on the N atom of the amino group. Hence the correct order of basicity is `(CH_3)_2NHgt(CH_3)_3NgtCH_3NH_2` |
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