Match list of two list are provided as given :List - IList - IICoCl3 . 6NH31.All Cl- are bonded with secondary valencyCoCl3. 5NH32.Maximum electrical conductivityCoCl3. 4NH33.Show cis-trans isomerismCoCl3. 3NH34.1 : 2 electrolyteSelect correct code :PQRSA2431 B1432 C2413 D4231

The question is asking to match the properties of the given compounds with the correct compound. Here's how you can do it:

1. CoCl3 . 6NH3: All Cl- are bonded with secondary valency. This is because in this compound, all the 6 positions of the central metal ion (Co) are occupied by NH3 and Cl- ions. The Cl- ions are bonded with secondary valency.

2. CoCl3 . 5NH3: Show cis-trans isomerism. This compound can show cis-trans isomerism because it has 5 NH3 and 1 Cl- ion. The different spatial arrangements of these ligands around the central metal ion can lead to different isomers.

3. CoCl3 . 4NH3: 1 : 2 electrolyte. This compound can dissociate into 1 Co3+ ion and 2 Cl- ions in solution, making it a 1:2 electrolyte.

4. CoCl3 . 3NH3: Maximum electrical conductivity. This compound can dissociate into the maximum number of ions in solution, leading to the highest electrical conductivity.

So, the correct code is B1432.