Question

4) An element X forms an oxide XO3 What
is the valency of X?​

Answer 1

Step-by-step explanation:

The compound XO3 has three atoms of oxygen. A molecule is overall neutral in charge. So, the valencies of the ions must balance each other while writing a chemical formula. So, the valency of X can be 6.

Answer 2

The correct answer is option (B.) 6.

Explanation:

• The compound XO₃ consists of three atoms of oxygen.
• Therefore, the valencies of the ions must balance each other while writing a chemical formula.
• So, the Valency of one oxygen atom = 2 Valency of three oxygen atoms = 2 x 3 = 6
• A molecule is overall or fully neutral in charge.
• Hence, the valency of X can be 6.

This question is incomplete, the complete question is:

An element X forms an oxide XO₃. What can be the valency of element X ?

A. 5

B. 6

C. 2

D. 4