The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is :

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The reaction of `P_(4)` with X leads selectively to `P_(4)O_(6)` The X is : A. Dry `O_(2)` B. ... `O_(2)` D. `O_(2)` in the presence of aqueous NaOH

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