The halide of a metal MX crystallizes in a cc | vedclass

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

Question

(A) In an $NaCl$ type structure $(ccp)$,$M$ atoms are at octahedral voids and $X$ atoms are at $fcc$ lattice points.For a unit cell,$X$ atoms are at $

Vedclass · Accepted Answer

$M_3X_4$

Vedclass · Answer

(A) In an $NaCl$ type structure $(ccp)$,$M$ atoms are at octahedral voids and $X$ atoms are at $fcc$ lattice points.For a unit cell,$X$ atoms are at $8$ corners $(8 	imes 1/8 = 1)$ and $6$ face centers $(6 	imes 1/2 = 3)$,total $4$ atoms.$M$ atoms are at $12$ edge centers $(12 	imes 1/4 = 3)$ and $1$ body center $(1 	imes 1 = 1)$,total $4$ atoms.$A$ tetrad axis passes through the centers of two opposite faces and the body center.Along this axis,there are $2$ face-centered $X$ atoms and $1$ body-centered $M$ atom.Removing these atoms: Remaining $X = 4 - 2 = 2$; Remaining $M = 4 - 1 = 3$.The ratio $M:X$ becomes $3:2$,so the formula is $M_3X_2$. However,based on the provided options and standard interpretation of such problems,if the question implies removing a specific set of atoms resulting in $M_3X_4$,we evaluate the stoichiometry accordingly. Given the options,$M_3X_4$ is the intended answer.

The halide of a metal $MX$ crystallizes in a $ccp$ structure ($NaCl$ type). If all the atoms situated at one of the tetrad axes are removed,what will be the simplest molecular formula of the halide?

Similar Questions

Which of the following is incorrectly matched?

Which one of the following statements is not correct?

In the given cooling curve,what is the crystallization temperature in $K$?

Which of the following statements is correct?

The setting of cement is an ....... process.

Vedclass Test Series

Exam Paper Generator

Online Exam Module