Question

How can you explain the higher stability of BCI₃ as compared to TICI₃?

Answer 1

bcl3 is stable while ticl3 is unstable . Boron and thallium belong to group 13 of the periodic table. In this group, the +1 oxidation state becomes more stable on moving down the group. BCl 3 is more stable than TlCl 3 because the +3 oxidation state of B is more stable than the +3 oxidation state of Tl.