JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
When \(Fe _{0.93} O\) is heated in presence of oxygen, it converts to \(Fe _2 O _3\). The number of correct statement/s from the following is __________ .
- A A. The equivalent weight of \(Fe _{0.93} O\) is \(\frac{\text { Molecular weight }}{0.79}\)
- B B. The number of moles of \(Fe ^{2+}\) and \(Fe ^{3+}\) in 1 mole of \(Fe _{0.93} O\) is 0.79 and 0.14 respectively.
- C C. \(Fe _{0.93} O\) is metal deficient with lattice comprising of cubic closed packed arrangement of \(O ^{2-}\) ions.
- D D. The \(\%\) composition of \(Fe ^{2+}\) and \(Fe ^{3+}\) in \(Fe _{0.93} O\) is \(85 \%\) and \(15 \%\) respectively.
Answer & Solution
Correct Answer
(D) D. The \(\%\) composition of \(Fe ^{2+}\) and \(Fe ^{3+}\) in \(Fe _{0.93} O\) is \(85 \%\) and \(15 \%\) respectively.
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