If in a given reaction `NO_(3)^(-)` is reduced to `NH_(4)^(+)` ,the mass of `NO_(3)^(-)` absorbing one mole of electrons would be

By the reduction of HNO_(3) to NO_(2) the number of moles of electrons involved per mole of HNO_(3) is

When the half-reaction NO_(3)^(-)rarrNO is balanced for one NO_(3)^(-) in acid solution.............. Electrons(s) is (are)............. .

For the redox reaction, Zn + NO_(3)^(-) to Zn^(2+) + NH_(4)^(+) In basic medium, coefficients of Zn, NO_(3)^(-) and OH^(-) in the balanced equation are respectively.