Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
Reverse osmosis
Sand filter
Lime soda
Permutit
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- __________ is an ore of lead.
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- Hydrogenation of vegetable oils is a/an __________ reaction.
- Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion…
- 'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
- Wax is a
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