JEE MAIN - Chemistry (2023 - 30th January Morning Shift - No. 6)
Which of the following is correct order of ligand field strength?
$$\mathrm{S}^{2-}<\mathrm{C}_{2} \mathrm{O}_{4}^{2-}<\mathrm{NH}_{3} < $$ en $$<\mathrm{CO}$$
$$\mathrm{CO}<\mathrm{en}<\mathrm{NH}_{3}<\mathrm{C}_{2} \mathrm{O}_{4}^{2}<\mathrm{S}^{2-}$$
$$\mathrm{S}^{2-}<\mathrm{NH}_{3}<$$ en $$<\mathrm{CO}<\mathrm{C}_{2} \mathrm{O}_{4}^{2}$$
$$\mathrm{NH}_{3}<\mathrm{en}<\mathrm{CO}<\mathrm{S}^{2-}<\mathrm{C}_{2} \mathrm{O}_{4}^{2}$$
Explanation
Ligand field strength
$$\mathrm{{S^{2 - }} < {C_2}O_4^{2 - } < N{H_3} < en < CO}$$
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