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When 20ml of mixture of O(2) and O(3) is...

When `20ml` of mixture of `O_(2)` and `O_(3)` is heated the volume becomes `29ml` and disappears in alkaline pyragallol solution. What is the volume precent of `O_(2)` in the originl mixture ? .

A

0.9

B

0.1

C

0.18

D

0.02

Text Solution

Verified by Experts

The correct Answer is:
B
`underset(a)(O_(3)) to underset(a+9)(O_(2))`
POAc on 0
3a=2(a+9)
a=18 ml
% of `O_(2)=2/20xx100=10%`
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