Question

which is more stable pbf2 or pbcl2

Answer 1

pbcl2 is stable between of two because electronegativity and also cl is less reactive than f

Answer 2

Pbcl2 is more reactive than pbf2 since the composition will depend on the density, temperature, durability, thermal expansion and optimal work.

In Pbcl2, the temperature is low as compared to pbf2 in which density, as well as temperature, is high.

Even in term of thermal expansion, pbcl2 is high than pbf2.