Question

Which is the formula for diarsenic pentoxide? Ar2O5 As5O2 As2O5 2As5O

Answer 1

Answer : The correct option is, $As_2O_5$

Explanation :

Diarsenic pentoxide having the formula, $As_2O_5$. It is a covalent compound which is formed by the sharing of electrons between the two non-metals. The two non-metals are arsenic (As) and oxygen (O).

When the two arsenic atoms share their electrons to the five oxygen atoms to form $As_2O_5$ covalent compound.

The formula of covalent compound is given by :

• The less electronegative element is written first.
• The more electronegative element is written second.
• If the prefixes are written with the elements then the prefix number is written in the subscript of the respective elements.

Hence, the formula for diarsenic pentoxide is, $As_2O_5$

Answer 2

As205 

Hope this helps:)