Question

Given: 2Fe203 + 3C —> 4Fe + 3CO2

for the reaction shown, which two compounds have a mole ratio of 4/3?

A. Fe to CO2
B. Fe2O3 to C
C. C to Fe
D. Fe2O3 to Fe

Answer 1

Answer : The correct option is, (C) C to Fe

Explanation :

The given chemical reaction is:

`2Fe_2O_3+3C\rightarrow 4Fe+3CO_2`

By the stiochiometry we can say that, 2 moles of
`Fe_2O_3` react with 3 moles of C to gives 4 moles of Fe and 3 moles of
`CO_2`.

From the balanced chemical reaction we conclude that,

As, 3 moles of C produces 4 moles of Fe

So, 1 mole of C produces
`(4)/(3)` moles of Fe

That means, the moles of ratio of C to Fe is 4 : 3

Therefore, the correct option is (C) C to Fe