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

In the reduction of HNO_(3) to N_(2)O the number of moles of electrons involved per mole of HNO_(3) is

In the reduction of HNO_3 to N_2O the number of mole of electrons involved per mole of HNO_3 is:

What is the number of moles of O-atoms in 126 amu of HNO_3 ?

What is the number of moles of O-atoms in 126 amu of HNO_3 ?

What is the number of moles of O-atoms in 126 amu of HNO_3 ?

What is the number of moles of O-atoms in 126 amu of HNO_3 ?

In the manufacture of HNO_(3) NO is prepared by the catalytic oxidation of ammonia . The number of moles of NO obained from 2 moles of NH_(3) is -