What volume of `O_(2)` is liberated when 3 moles of `SO_(2)` reacts with sufficient volume of `O_(3)`

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What volume of `O_(2)` is liberated when 3 moles of `SO_(2)` reacts with sufficient volume of `O_(3)` A. Zero B. 2 Vol C. 3 Vol D. `0.5` Vol

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