हिंदी

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of Co3+ is:

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प्रश्न

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of Co3+ is:

विकल्प

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

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

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

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

MCQ
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उत्तर

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

Explanation:

Stronger ligands cause greater crystal field splitting (Δ0), leading to absorption of higher energy (shorter wavelength) light.

Ligand strength: en > NH3 > H2O

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