Mass Transfer
The equipment used in the extraction of highly corrosive radio active liquids is

Baffle tower
Mixer settler
Pulse column
Spray column

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Mass Transfer
Pick out the wrong statement pertaining to leaching.

Door classifier can be used for leaching of coarse solids
Fine solids can not be leached in a Pachuka tank
Vegetable seeds can be leached in either of Bollman extractor, Rotocel or Kennedy extractor
Very high temperature is not needed for the leaching of sugar beet

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