Question

An element forms an oxide having formula X2O3.
(a) What is the valency of X
(b) Write the formula of hydroxide of X ​

Answer 1

Answer:

a)valency is +3

b)X(OH)3

Answer 2

Answer:

the valency is +3

Explanation:

the valency is +3 because , if we imagine in criss cross method x and y their valencies are on either side so x is 3 on that side . so x valency is 3