Answer:
a = 4
b = 3
Explanation:
SOLUTION :-
Balance it by using 'hit & trial' method , and you'll get the answer :-
2Fe₂O + 3C → 4Fe + 3CO₂
⇒ a = 4 ; b = 3
VERIFICATION :-
In reactant side of equation :-
In product side of equation :-
Number of atoms of each element is equal in both reactant & product side of equation. Hence , the equation is balanced.