A) 23% increase
B) 12% decrease
C) 12% increase
D) no change
Correct Answer: A
Solution :
[a] \[\underset{Fe%\frac{56}{120}\times 100=46.67}{\mathop{\underset{56+32\times 2=120}{\mathop{Fe{{S}_{2}}}}\,}}\,\xrightarrow[{}]{{}}\underset{\frac{112}{160}\times 100\,=\,70}{\mathop{\underset{56\times 2+3\times 16\,=160}{\mathop{F{{e}_{2}}{{O}_{3}}}}\,}}\,\] Percent increase = 70 46.67 = 23% (approx.)You need to login to perform this action.
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