Coordination Compounds Question 6

Question 6 - 25 January - Shift 2

IVIatch List 1 with List II

List I
Coordination entity
mathon
List II
Wavelength of
light absorbed
in nm nathon
A. $[CoCl(NH_3)_5]^{2+}$ I. 310
B. $[Co(NH_3)_6]^{3+}$ II. 475
C. $[Co(CN)_6]^{3-}$ III. 535
D. $[Cu(H_2 O)_4]^{2+\text{ nathonong and }}$ IV. 600

Choose the correct answer from the options given below :-

(1) A-IV, B-I, C-III, D-II

(2) A-III, B-II, C-I, D-IV

(3) A-III, B-I, C-II, D-IV

(4) A- II, B-III, C-IV, D-I

Show Answer

Answer: (2)

Solution:

Formula: CFSE

m List I
Coordination entity
thongo mathon
List II
Wavelength of
light absorbed
in nm
A. $[CoCl(NH_3)_5]^{2+}$ thon I. 535
B. $[Co(NH_3)_6]^{3+}$ II. 475
C. $[Co(CN)_6]^{3-}$ III. 310
D. $[Cu(H_2 O)_4]^{2+}$ IV. 600

$E=\frac{hc}{\lambda} \Rightarrow E \propto \frac{1}{\lambda}$

$\Rightarrow \Delta($ CFSE $) \propto \frac{1}{\lambda _{\text{absorb }}} \propto$ strength of ligand.