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Two elements X(at.mass=75) and Y(at.mass=16) combine to give a compound having 75.8% of X. The formula of the compound is

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$X_{2} Y_{2}$

$X_{2} Y_{3}$

$X Y$

$X_{2} Y$

answer is D.

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Detailed Solution

$\begin{array}{l} X Y \\ \frac{75.8}{75} \frac{24.2}{16} \\ 1 3 / 2 \\ 2 3 \end{array}$

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