Question

Phosphorus burns in presence of chlorine to form phosphorus pentachloride.
A balanced eqn 4 it

Answer 1

Phosphorus burns in chlorine gas to form phosphorus pentachloride.

Phosphorus pentachoride or PCl5 is a colourless, sensitive to water and moisture solid. It is obtained by not only burning phosphorus in chlorine but also by chlorination of PCl3.

The balanced formula of phosphorus burns in chlorine gas to form phosphorus pentachloride:

 4P4 + 10Cl2 -> 4PCl5

hope it helps

Answer 2

P(S) + 5Cl= pcl5 it is correct