Question

Select the correct statement regarding shapes of $PCl_5, BrF_5$ and $IF_7$.

• A. All are square pyramidal.
• B. All are trigonal bipyramidal.
• C. One of the following is square pyramidal
• D. one of the following is tetrahedral

Answer 1

Answer: (C)

$PCl _{5}$ [see image]
$bp =5$
Total $= 5$
$Sp ^{3} d$ Trigonal bipyramidal
$BrF _{5}$ [see image]
$bp =5$
$Ip=1$
Total $=6$
$Sp ^{3} d ^{2}$
square pyramidal
$IF _{7}$ [see image]
$b p=7$
$Ip =0$
Total $=7$
$Sp ^{3} d ^{3}$
pentagonal bipyramidal