Question

What is the correct formula for tetraphosphorous octaoxide

P4O10
P4O8
Ph4O8
P5O8

Answer 1

The correct formula for tetraphosphorus decaoxide is P4O10, also known as phosphorus(V) oxide, which reacts with water to form orthophosphoric acid.

Step-by-step explanation:

The correct formula for tetraphosphorus decaoxide is P4O10. This compound is also known as phosphorus(V) oxide and is a white powder that exhibits significant stability. When P4O10 is dropped into water, it reacts to form orthophosphoric acid according to the following reaction:

P4O10(s) + 6H₂O(l) → 4H3PO4 (aq)

Phosphorus also forms another oxide known as phosphorus(III) oxide or tetraphosphorus hexaoxide, P4O6, which is a different compound.

Answer 2

P_4O_8

How?

Let's learn how to create name of compound from its name.

Look below for root words

• 2-di
• 3-tri
• 4-tetra
• 5-pent
• 6-hex
• 7-hept
• 8-oct
• 9-non
• 10-dec

Hence formula of the compound is P4O8