Final answer:
The correct name for the compound P4O6 is tetra phosphorus hexoxide. It forms phosphorous acid when dissolved in water.
Step-by-step explanation:
The correct name for the compound P4O6 is tetra phosphorus hexoxide. This compound consists of four phosphorus atoms and six oxygen atoms. It is important to note that P4O6 is different from another compound, P4O10, which is called tetra phosphorus decaoxide. Tetra phosphorus hexoxide forms phosphorous acid when dissolved in water, while tetra phosphorus decaoxide reacts with water to produce orthophosphoric acid.