Kemija - 2009./10. ljeto - 13.

A. $N(\mathrm{H})=N(\mathrm{O})N(\backslash mathrm\{H\})=N(\backslash mathrm\{O\})$

B. N(\mathrm{H})<N(\mathrm{O})

C. N(\mathrm{H})>N(\mathrm{O})