Coordination Compounds Question 6
Question 6 - 25 January - Shift 2
IVIatch List 1 with List II
| List I Coordination entity |
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. | $[Cu(H_2 O)_4]^{2+}$ | 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
| List I Coordination entity |
List II Wavelength of light absorbed in nm |
||
|---|---|---|---|
| A. | $[CoCl(NH_3)_5]^{2+}$ | 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.
