Question

71. Which of the following is correct order of stability? (1) [NiCl4] 2 < [PdCl4] 2 < [PtCl4] 2 (2) [Co(H2O)6] 3 < [Co(NH3)6] 3 < [Co(CN)6] 3 (3) [Co(H2O)6] 3 < [Rh(H2O)6] 3 < [Ir(H2O)6] 3 (4) All of these

Answer 1

Answer:

1. is correct order of stability

Answer 2

Answer:

stability of complex compound is depends  on the following factors

• higher charge of central atom

• greater base strength of the compound

• and ring formation

   the correct answer is option D .

• we can arrange the  stability order with the help of spectrochemical series

• spectrochemical series

• Br⁻ < SCn⁻ < Cl⁻< S⁻< No3⁻ < F⁻< OH< C2O4⁻<  H2O < NCS< edta< NH3< en< NO2< CN< CO  

• as the + I effect increase compound become more stable