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When a slow dry stream of dioxygen is pa...

When a slow dry stream of dioxygen is passed through a silent electrical discharge up to `"_____"` per cent conversion to ozone occurs.

A

`15`

B

`5`

C

`10`

D

`20`

Text Solution

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The correct Answer is:
3
Ozone is usually prepared by the action of a silent electric discharge upon oxygen between two concentric metallized tubes in an apparatus called an ozonizer. The product is known as ozonized oxygen (a mixture of `O_(3)` and `O_(2)`). Concentration of upto `10%` of `O_(3)` are obtained in this way. Since ozone is an endthermic compound it is necessary to use a silent electrical discharge , otherwise sparking would generate heat an decomposed it.
If concentrations of ozone greater than `10%` are required a battery of ozonisers can be used, and pure ozone (b.p `-112^(@)C`) condensed out in a vessel surrounded by liquid oxygen.
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