Question

13) the absorption maxima of several octahedral complex ions are as follows: s.No compound max nm 1 [co(nh3)6] 3+ 475 2 [co(cn)6] 3- 310 3 [co(h2o)6] 3+ 490 the crystal field splitting is maximum for : (a) [co(h2o)6] 3+ (b) [co(cn)6] 3- (c) [co(nh3)6] 3+ (d) all the complex ions have the same splitting, o ,

Answer 1

Explanation:

The crystal field splitting is maximum for

(b) [CO(CN)6] ^3-

Answer 2

The absorption by complex ions are as follows in question but The crystal field splitting is maximum for:

B option .

Explanation:

This question is answered on the basis of crystal field splitting

s.No compound max nm 1 [co(nh3)6] 3+ 475

2 [co(cn)6] 3- 310 (Maximum shown )

3 [co(h2o)6] 3+ 490 the crystal field splitting is maximum for :

In the above asked question the lesser value is of wavelength of light is for : option B : therefore maximum crystal field splitting is shown by it .