Question

An element X forms the following compounds with hydrogen, carbon and oxygen H2X, CX2, XO2, XO3
State the three valencies of element X which are illustrated by these compounds.

Answer 1

Answer:

Explanation:

I think the X is O but when I saw that XO2 I realized it is not coz how can it form OO2.....

Answer 2

Explanation:

• H2X: Two X atoms are required to even out the compound with hydrogen. So, it can be found that the valency of X is 2 in this compound.
• CX2: Two X atoms are needed to stabilize CX2 with carbon. So, it is observed that the valency of X is two.
• XO2: Four X atoms are required to even out the compound with oxygen. So, it is seen that the valency of X is four.
• XO3: Six X atoms are needed to stabilize the compound with oxygen. So, it is observed that the valency of X is six.