Question

One mole of hydrazine $(N_2H_4)$ loses 10 moles of electrons in a reaction to form a new compound $X$. Assuming that all the nitrogen atoms in hydrazine appear in the new compound, what is the oxidation state of nitrogen in $X$? (Note: There is no change in the oxidation state of hydrogen in the reaction)

• A. $-1$
• B. $-3$
• C. $+3$
• D. $+5$
• E. $+1$

Hint:

In oxidation problems:
• Always calculate initial oxidation state first
• Total increase in oxidation state = electrons lost
• Divide change among identical atoms carefully
• Hydrogen often remains +1 unless specified otherwise

Answer 1

The Correct Option is C