Question

______________ozoniser is commonly used for preparation of ozone.

Answer 1

Siemens ozoniser:

• It contains an inlet for pure dry oxygen and an outlet for ozonised oxygen.
• The surface of the tubes is coated with foils. These are connected to the two terminals of an induction coil in order to pass a current of high voltage.
• A slow stream of cold pure and dry oxygen is introduced from the inlet and a silent electric discharge is then passed.
• This slowly converts oxygen into ozone.

Therefore,Siemens ozoniser is commonly used for the preparation of ozone.