Chemistry · Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions
One mole of absorbs 5 moles of electrons in a redox reaction. The reduced produc
One mole of \( H N O_{3} \) absorbs 5 moles of electrons in a redox reaction. The reduced product of this reaction is :
- A. 1 mole \( N_{2} \)
- B. 1 mole \( N_{2} \) O
- C. 1 mole \( N O_{2} \)
- D. 1 mole \( N H_{3} \)
Step-by-step solution
In HNO3, nitrogen has an oxidation state of +5. Gaining 5 electrons reduces it to 0 oxidation state. The product with nitrogen in 0 oxidation state is N2. The half-reaction is: NO3- + 6H+ + 5e- → 1/2N2 + 3H2O, so 1 mole HNO3 consumes 5 moles electrons to produce 0.5 mole N2. Among options, only N2 corresponds to a reduction by 5 electrons per N atom.
Related MCQs
- The reaction that takes place when gas is passed through conc. NaOH solution is :…
- An oxidation process involves:…
- Identity the compound in which phosphorus exists in the oxidation state of +1…
- In the following redox reaction: +\boldsymbol{N} \boldsymbol{O}_{\boldsymbol{3}}^{-}(\boldsymbol{a} \boldsymbol{q})+\boldsymbol{H}^{+}(\bold…
- All dilute acids react with bleaching powder, liberating:…