Question

Arrange the following in increasing order as directed :

(a) (a) [CoCl₃ (NH₃)₃ ] , (b) [CoCl (NH₃)₅ ] Cl₂ , (c) [Co(NH₃)₆ ] Cl₃ , (d) [CoCl₂ (NH₃)₄ ] Cl – Molar conductance 

(b) C, N, O, X (halogen) -(donar atoms) - Strength of ligands. 

(c) Br^– , S^2– , NO₂^– , CO , H₂O, CN^– , NH₃ , NO₃^– - strength of ligands.

Answer 1

(A) a < d < b < c 

(B) X < O < N < C 

(C) Br ^– < S^2– < NO₃^– < H₂O < NH₃ < NO₂^– < CN^– < CO