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A mixture of 20 mL of CO, CH(4) and N(2)...

A mixture of 20 mL of `CO, CH_(4) and N_(2)` wsa burnt in an excess of oxygen, resulting in reduction of 13 mL of volume. The residual gas was treated with KOH solution when there was a further reduction of 14 mL in volume. Calculate the volumes of CO and `CH_(4)` in the given mixture.

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`10mL, 4mL`
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