InterviewSolution
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InterviewSolution
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Which of the following statement is/are correct ?A. `(I)` and `(II)` are aromatic and have equal basic strength.B. `(I)` is aromatic and `(II)` is anti-aromatic, but `(II)` is stronger base than `(I)`C. The order of basicity of the above compounds is `(IV) gt (III) gt (II) gt (I)`.D. The conjugate acid of `(IV)` is more stabilised than the conjugate acid of `(II)`. |
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Answer» (c and d) In `IV`, lone pair of two `N` makes it more basic and does not delocalise in the benzene ring. In `III`, no delocalisation of `LP` of `overline e^, s` on `ddot N H_2` In `II`, no delocalisation of `LP` of `overline e` on `N` In `I`, delocalisation of `LP` of `overline e^, s` on `N` via resonance. Hence, the order of basic character is : `IV gt III gt II gt I`. |
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