ICSE Class 10 Chemistry 2015 Solved Paper

Element $X$ is a metal with a valency $2, Y$ is a non-metal with a valency 3.

Question : 42 of 85

Marks: +1, -0

Y

is a diatomic gas, write an equation for the direct combination of

X

and

Y

to form a compound.

Solution:

\;3 {\X}+ {\Y}_2 → {\X}_3 {\Y}_2

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