Element $\mathrm{X}$ reacts with oxygen to produce a pure sample of $\mathrm{X}_2 \mathrm{O}_3.$ In an experiment it is found that $1 \mathrm{~g}$ of $\mathrm{X}$ produces $1.16 \mathrm{~g}$ of $\mathrm{X}_2 \mathrm{O}_3.$ Calculate the atomic weight of $\mathrm{X}.$ (Given atomic weight of oxygen, $16.0 \mathrm{~g} \mathrm{~mol}^{-1}$)

JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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Application +4 | -1

Element

\mathrm{X}

reacts with oxygen to produce a pure sample of

\mathrm{X}_2 \mathrm{O}_3.

In an experiment it is found that

1 \mathrm{~g}

\mathrm{X}

produces

1.16 \mathrm{~g}

\mathrm{X}_2 \mathrm{O}_3.

Calculate the atomic weight of

\mathrm{X}.

(Given atomic weight of oxygen,

16.0 \mathrm{~g} \mathrm{~mol}^{-1}

)

View answer and explanation

Correct option: D

150

Option D (150) is correct because it is calculated using the principle of atom conservation (POAC) applied to element X.