question_answer

Max. number of moles of electrons taken up by one mole of \[NO_{3}^{-}\] when it is reduced to           [DPMT 2002]

A)                 \[N{{H}_{3}}\]  

B)                 \[N{{H}_{2}}OH\]

C)                 \[NO\] 

D)                 \[N{{O}_{2}}\]