Question

Number of formula units in unit cell of $MgO$ (rock salt), $ZnS$ (zinc blende) and $Pt(fcc)$ respectively

• A. $4,3,2$
• B. $4,3,4$
• C. $4,4,4$
• D. $4,3,1$

Answer 1

Answer: (C)

$MgO=4$
$ZnS=4$
$Pt(f.c.c.)=4$