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Question:

Among the oxides of nitrogen: N2O3, N2O4 and N2O5; the molecule(s) having nitrogen-nitrogen bond is/are:

Only N2O5

N2O3 and N2O4

N2O4 and N2O5

N2O3 and N2O5

Solution:

Among the oxides of nitrogen: N2O3, N2O4 and N2O5; the molecule(s) having nitrogen-nitrogen bond are N2O3 and N2O4. Whereas, N2O5 has nitrogen-oxygen bonds only.