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90 mL of pure dry O(2) is subjected to ...

90 mL of pure dry `O_(2)` is subjected to silent electric discharge. If only `10%` of it is converted to `O_(3)` volume of the mixture of gases `(O_(2)and O_(3))` after the reaction will be ------ and after passing through alkaline pyrogallol (absorbing agent of oxygen gas) will be

A

87 mL and 6 mL

B

81 mL and 87 mL

C

78 mL and 84 mL

D

87 mL and 81 mL

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A
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