Which statement is correct for Fe_3O_4? | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) $Fe_3O_4$ is an inverse spinel structure.In this structure,the oxide ions $(O^{2-})$ form a cubic close-packed $(ccp)$ lattice.The total number of

Vedclass · Accepted Answer

$Fe^{3+}$ ions are present in both tetrahedral and octahedral voids in $Fe_3O_4$.

Vedclass · Answer

(C) $Fe_3O_4$ is an inverse spinel structure.In this structure,the oxide ions $(O^{2-})$ form a cubic close-packed $(ccp)$ lattice.The total number of $O^{2-}$ ions per unit cell is $4$.There are $8$ tetrahedral voids and $4$ octahedral voids per unit cell.In $Fe_3O_4$,the distribution of iron ions is as follows:$1/3$ of the total iron ions are $Fe^{2+}$ and $2/3$ are $Fe^{3+}$.Specifically,$Fe^{2+}$ ions occupy $1/8$ of the tetrahedral voids,while $Fe^{3+}$ ions occupy $1/8$ of the tetrahedral voids and $1/2$ of the octahedral voids.Thus,$Fe^{3+}$ ions are present in both tetrahedral and octahedral voids.

Which statement is correct for $Fe_3O_4$?

Similar Questions

The number of nearest neighbours and next nearest neighbours of an $Na^{+}$ ion in a crystal of $NaCl$ are respectively

How many $NaCl$ units are present in one unit cell of $NaCl$?

The radius of the largest sphere which fits properly at the centre of the edge of a body-centered cubic $(BCC)$ unit cell is (Edge length is represented by $a$) (in $a$)

In an $NaCl$ crystal,how many $Cl^{-}$ ions surround each $Na^{+}$ ion?

$A$ compound having elements $X$ and $Y$ crystallises in a cubic structure, where $X$ is at the corner position and $Y$ is at the center of the cube. The correct formula of the compound is

Vedclass Test Series

Exam Paper Generator

Online Exam Module