\([NiCl_2(PPh_3)_2]\) is named as:

Dichloridobis (triphenyl phosphine) nickel (II)

The correct answer is option 1. Dichloridobis (triphenyl phosphine) nickel (II).

The correct name for the compound \([NiCl_2(PPh_3)_2]\) is determined based on the naming conventions for coordination compounds. Here's the breakdown of the compound's name:

The central metal ion is nickel (Ni).

There are two chloride ions \((Cl^-)\) coordinated to the nickel ion.

There are two triphenylphosphine ligands \((PPh_3)\) coordinated to the nickel ion.

Using the rules for naming coordination compounds, we start with the ligands, then the central metal ion, and finally the counter ions. The name should reflect the ligands first, followed by the metal ion, and then the anions.

Therefore, the correct name for \([NiCl_2(PPh_3)_2]\) is: (1) Dichloridobis(triphenylphosphine)nickel(II)