Q. Out of the following complex compounds, which of the compound will be having the minimum conductance is solution?
A) $[Co(NH_3)_3Cl_3]$
B) $[Co(NH_3)_4Cl_2]$
C) $[Co(NH_3)_6]Cl_3$
D) $[Co(NH_3)_5Cl]Cl$
Explanation
[Solution by Claude - not from source] The answer key accepts both (1) and (2). $[Co(NH_3)_3Cl_3]$ is a neutral non-electrolyte (no ions). Option (2) as printed, $[Co(NH_3)_4Cl_2]$, is a cation without a counter-ion, so it appears to have been accepted as well; this explanation is my inference. Answer (1) and (2), as in the answer key.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.