Question

# Consider the following reaction :$$xAs_2S_3 + yO_2 \rightarrow z As_2O_3 + wSO_2$$What is $$y$$ (the coefficient for $$O_2$$) when this equation is balanced using whole number coefficients?

A
5
B
7
C
9
D
11

Solution

## The correct option is C 9$$2As_2S_3 + 9O_2 \rightarrow 2 As_2O_3 + 6SO_2$$General Knowledge

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