Question

11. Correct increasing order for the wavelengths ofabsorption in the visible region for the complexes ofCo³⁺ is
(1) [Co(en)₃]³⁺, [Co(NH₃)₆]³⁺, [Co(H₂O)₆]³⁺
(2) [Co(H₂O)₆]³⁺, [Co(en)³]³⁺, [Co(NH₃)₆]³⁺
(3) [Co(H₂O)₆]³⁺, [Co(NH₃)₆]³⁺ , [Co(en)₃]³⁺
(4) [Co(NH₃)₆]³⁺, [Co(en)₃]³⁺, [Co(H₂O)₆]³⁺

Answer 1

Answer:

1st is correct

Explanation:

[Co(en)3]3+, [Co(NH3)6]3+, [Co(H2O)6]3+

This is correct option