Question

What is the correct formula for tetraphosphorous octaoxide
P4O10
P4O8
Ph4O8
P5O8

Answer 1

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