Chemistry
Grade-9
Easy

Question

The chemical formula of tetraphosphorus heptoxide is:

  1. F₄O₁₀
  2. P₄O7
  3. PO
  4. P₁₀O₄

Hint:

The prefix -tetra which means four and -hept means seven.

The correct answer is: P₄O7


    • The subscript of the chemical formula is the prefix in the chemical name.
    • In the name phosphorus has prefix -tetra which means four and oxygen has prefix -hept means seven.
    • The chemical formula is P4O7.

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