A) 16.05
B) 15.05
C) 18.05
D) 17.05
Correct Answer: B
Solution :
Oxidation number of Fe in wustite is \[=\frac{200}{93}=2.150\] It is an intermediate value in between two oxidation states of Fe, i.e. Fe (II) and Fe (III). Suppose that the percentage of Fe (III) be x, then \[2\times (100-x)+3\times x=2.15\times 100\] or \[200-2x+3x=215\] or \[x=15%\] So, wustite is mixture of 15% Fe (III) and 85% Fe (II).You need to login to perform this action.
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