InterviewSolution
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InterviewSolution
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The base with lowest `pK_(a)` value isA. `N equiv C CH_(2)NH_(2)`B. `Et_(3)N`C. `NH_(3)`D. `HO-CH_(2)CH_(2)NH_(2)`. |
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Answer» Correct Answer - A As the basicity decreases `pKa` value decreases. Due to the presence of strong electron with drawing group (-I effect) (A) is the weakest base. The `N equiv C-CH_(2)NH_(2)` has the lowest electron density on N atom and is the weakest base. `:. N equiv C-CH_(2)NH_(2)` has lowest `pK_(a)` value. |
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