Question

valency of an element X is 3 while that of Y is 1. Write the formula of the compounds formed when each of them separately combines with oxygen

Answer 1

X2O3
Y2O
.......these two will be the oxides

Answer 2

The formula of the compounds formed when each of them separately combines with oxygen is given as below.

Explanation:

When X is combined with oxygen the formula will be X2O3

When Y is combined with oxygen the formula will be Y2O

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