Question

General formula of solid in zinc blende structure is:

• A. $AB_2$
• B. $AB_4$
• C. $AB$
• D. $A_2B$

Answer 1

Answer: (C)

$AB$

Answer 2

$Zn ^{+2}$ present in alternate tetrahedral void
$=\frac{1}{2} \times 8=4$
$S ^{2-}$ present in $ccp =4$
$\therefore Zn _{4} S _{4}= ZnS$ i.e., $AB$ type compound.