Question

Match the interhalogen compounds of column I with the geometry in column II and assign the correct code.

	Column I		Column II
(a)	$X{X}^{\prime }$	(i)	T-shape
(b)	$X{X}_3^{\prime }$	(ii)	Pentagonal bipyramidal
(c)	$X{X}_5^{\prime }$	(iii)	Linear
(d)	$X{X}_7^{\prime }$	(iv)	Square - pyramidal
		(v)	Tetrahedral

• A. $\left(a\right)-\left(iv\right),\left(b\right)-\left(iii\right),\left(c\right)-\left(ii\right),\left(d\right)-\left(i\right)$
• B. $\left(a\right)-\left(iii\right),\left(b\right)-\left(iv\right),\left(c\right)-\left(i\right),\left(d\right)-\left(ii\right)$
• C. $\left(a\right)-\left(iii\right),\left(b\right)-\left(i\right),\left(c\right)-\left(iv\right),\left(d\right)-\left(ii\right)$
• D. $\left(a\right)-\left(v\right),\left(b\right)-\left(iv\right),\left(c\right)-\left(iii\right),\left(d\right)-\left(ii\right)$

Answer 1

The correct option is C $\left(a\right)-\left(iii\right),\left(b\right)-\left(i\right),\left(c\right)-\left(iv\right),\left(d\right)-\left(ii\right)$

(a)−(iii),
$X{X}^{\prime }$ has linear geometry as only two atoms are present.
(b)−(i),
$X{X}_3^{\prime }$ has T-shaped geometry as 3 bond pairs and 2 lone pairs of electrons are present. The electron pair geometry is trigonal bipyramidal.
(c)−(iv),
$X{X}_5^{\prime }$ has Square - pyramidal geometry as 5 bond pairs and 1 lone pair of electrons are present. The electron pair geometry is octahedral.
(d)−(ii)
$X{X}_7^{\prime }$ has pentagonal bipyramidal geometry as 7 bond pairs and 0 lone pairs of electrons are present.