Chemical Process
Which of the following processes can remove both temporary as well as permanent hardness of water?

Filtration
Distillation
None of these
Boiling

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Chemical Process
Reverse osmosis is normally used for the

Separation of helium from natural gas
Separation of isotopes of uranium from gaseous uranium hexaflouride
Desalination of brackish water to produce potable (drinking) water
Purification of oxygen

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