Question

Among the ligands NH_3,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

Answer 1

(B) NH₃< en< CN–< CO