Among the ligands NH3, en, CN and CO, the correct order of their increasing field strength, is :–

(a) CO < NH3 < en < CN

(b) NH3 < en < CN < CO

(c) CN < NH3 < CO < en

(d) en < CN< NH3 < CO

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1 Answers

Correct option (b) NH3 < en < CN < CO

Explanation:

Based on spectrochemical series, ligands arranged in increasing order of crystal field strength are as NH3 < en < CN < CO

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