Introduction to coordination complexes

Remember concepts with our Masterclasses.

80k Users

60 mins Expert Faculty Ask Questions

Question

Match the following(SFL=Strong field ligand & WFL=Weak field ligand)
A. $d^{3}$ (WFL) P. Zero unpaired electrons
B. $d^{6}$ (SFL) Q. Three unpaired electrons
C. $d^{6}$ (WFL) R. One unpaired electrons
D. $d^{9}$ (SFL) S. Four unpaired electrons

Moderate

A

A-Q,B-S,C-P,D-R
B

A-R,B-P,C-S,D-Q
C

A-Q,B-P,C-S,D-R
D

A-R,B-S,C-Q,D-P

Solution

When strong field Ligand is present then Hund rule is disobeyed. That means pairing of electrons takes place. But when weak field Ligand is present then Hund rule is obeyed and the electrons are filled after the orbitals are half filled.

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

Talk to our academic expert!

Create Your Own Test
Your Topic, Your Difficulty, Your Pace

Similar Questions

Match each coordination compound in Column I with an appropriate pair of characteristics from Column II and select the correct answer using the code given below the lists

Column I		Column II
a.	$[Cr {({NH}_{3})}_{4} {Cl}_{2}] Cl$	p.	Paramagnetic and exhibits ionisation isomerism
b.	$[Ti {(H_{2} O)}_{5} Cl] {({NO}_{3})}_{2}$	q.	Diamagnetic and exhibits cis-trans isomerism
c.	$[Pt (en) ({NH}_{3}) Cl] {NO}_{3}$	r.	Paramagnetic and exhibits cis-trans isomerism
d.	$[Co {({NH}_{3})}_{4} {({NO}_{3})}_{2}] {NO}_{3}$	s.	Diamagnetic and exhibits ionisation isomerism