Number of moles of electrons are needed to convent one mole of nitrate ion to hydrazine are "

Number of electrons involved in the conversion of one nitrate ion to hydrazine will be

Number of electrons required to deposit one mole of Mg^(2+) ions is

" Number of mole of electrons in 8g O^(2-) ions are "

The number of moles of KMn_(4) that will be needed to react with one mole of sulphite ion in acidic medium is

The number of moles of KMnO_(4) that will be needed to react with one mole of sulphite ion in acidic solution is