Which of the following is the most stable resonance structure .

1.	Which of the following is the most stable resonance structure .
Answer» Structure `(c ) ` is the most stabel resonance structure (i) Number of covalent bonds in (a) and (b) `=3` (ii) Number of covalent bonds in (c ) and (d) `=14` (iii) In ( c) Positive charge is no`N` whereas in (d) it is than `O` atom Since `N` uis less `EN` (electronegative) than `O` (c) is more stable (iv) Order of stability `c gt d gt a gt b` .

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Which of the following is the most stable resonance structure .

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