The simplest formula of the compound containing 50% X (atomic mass 10 amu) and 50% Y (atomic mass 20 amu) is:

X Y_{2}

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X_{2} Y

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X_{2} Y_{3}

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X Y_{3}

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Solution

The correct option is B $X_{2} Y$
no. of atoms of $X =$ $\frac{50}{10}$ =5

no. of atoms of $Y =$ $\frac{50}{20}$ =2.5

Simplest ratio: for $X =$ $\frac{5}{2.5}$ =2

for $Y =$ $\frac{2.5}{2.5}$ =1

Empirical formula is $X_{2} Y$

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The simplest formula of a compound containing $50 %$ of element X (atomic mass 10) and $50 %$ of element Y (atomic mass 20) is

The simplest formula of a compound containing 50% of element X (atomic mass = 10g/mol) and 50% of element Y (atomic mass 20g/mol) is:

50

X

=

10

50

Y

=

20

X (a t o m i c m a s s = 10)

Y (a t o m i c m a s s = 20)

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