Question

1 mol of iron (fe) reacts completely with 0.65 mol o2 to give a mixture of only feo and fe2o3. Mole ratio of ferrous oxide to ferric oxide is :

Answer 1

1.0 mol of Fe reacts completely with 0.65 mol of 02 to give a mixture of only Fe0 and Fe2O3. The mole ratio of ferrous oxide to ferric oxide is

a)2 : 2                      

b)4:3                          

c)1:2                        

d)  2: 7

Correct answer is option 'B'. Can you explain this answer?