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[Solved] In the following compounds the order of basicity is

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In the following compounds

the order of basicity is

(a) IV > I > III > II

(b) III > I > IV > II

(c) II > I > III > IV

(d) I > III > II > IV

1 Answer
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Correct answer: (d) I > III > II > IV

Explanation:

In I the unshared pair of electrons on N always available for protonation in III due to presence of electronegative O atom the electron density on N is decreased . In II and IV resonance suppresses the basic character.

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