What is covalency of chlorine atom in its second excited state ?

Electronic configuration of Cl is [Ne]3s²3p⁵.

In its first excited state, one valence electron of Cl excited to empty 3d orbital and its electronic configuration becomes [Ne]3s²3p⁴3d¹. 

In its second excited state, another valence electron of Cl excited to empty 3d orbital and its electronic configuration becomes [Ne]3s²3p³3d². 

As there are five unpaired electrons, therefore it can form five bonds. This implies that at the second excited state of Cl, covalency of Cl is 5.