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Laws of Definite Proportions, Multiple Proportions

2KClO3 2KCl +...

Question

$2 K C l O_{3} M n O_{2} - --- \to 2 K C l + 3 O_{2}$
The number of moles of $O_{2}$ in the above equation is:

0.3 moles

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0.9 moles

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3 moles

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3.3 moles

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Solution

The correct option is A 0.3 moles
$2 K C l O_{3} M n O_{2} - --- \to 2 K C l + 3 O_{2}$
No of moles of $O_{2} = \frac{6.72}{22.4} = 0.3$

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