A compound MpXp has cubic close packing (ccp) arrangement of X . Its unit cell structure is shown in figure. The empirical formula of the compound is:

Question

A compound MpXp has cubic close packing (ccp) arrangement of X . Its unit cell structure is shown in figure. The empirical formula of the compound is: <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-ozzpadm7d8zjllhs.jpg" /> (A) MX (B) MX2 (C) M2X (D) M5X14

Tardigrade Admin · Accepted Answer

MpXq has ccp structure, therefore x=8× (1/8)+6× (1/2)=4 M=4× (1/4)+1=2 So unit cell formula of the compound is M2X4 and the empirical formula of the compound is MX2 .

Q. A compound $M_{p} X_{p}$ has cubic close packing (ccp) arrangement of $X$ . Its unit cell structure is shown in figure. The empirical formula of the compound is :

$MX$

$M X_{2}$

$M_{2} X$

$M_{5} X_{14}$

$M_{p} X_{q}$ has ccp structure, therefore
$x = 8 \times \frac{1}{8} + 6 \times \frac{1}{2} = 4$
$M = 4 \times \frac{1}{4} + 1 = 2$
So unit cell formula of the compound is $M_{2} X_{4}$ and the empirical formula of the compound is $M X_{2}$ .

Q. A compound Mp​Xp​ has cubic close packing (ccp) arrangement of X . Its unit cell structure is shown in figure. The empirical formula of the compound is :

MX

MX2​

M2​X

M5​X14​