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Which of the following methods is used to form ozone from oxygen?

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in Chemistry – Class 12 by (188k points)
Which of the following methods is used to form ozone from oxygen?

(a) Standard electric discharge

(b) Silent electric discharge

(c) Thermal decomposition

(d) Heating in an atmosphere of excess oxygen

The question was asked in an internship interview.

This intriguing question comes from P-Block Elements topic in division P-Block Elements of Chemistry – Class 12

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The correct choice is (b) Silent electric discharge

To explain I would say: Standard electric discharge produces sparking when electricity is passed through the tube. However, silent electric discharge is more appropriate because the conversion of ozone to oxygen is endothermic. The yield may be reduced by the heat from sparks.

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