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Surface Chemistry
Answer:
When alum (Al2(SO4)3 is added into water. It forms a gel like precipitate such as Al(OH)3 . The alum precipitate then forms small bundles that trap suspended particles as they fall through water.
This process is known as floculation.
After floculation the particles will be large enough to settle and can be removed.
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In Haber's process, hydrogen is obtained by reacting methane with steam in presence of NiO as catalyst. The process is known as steam reforming. Why is it necessary to remove CO when ammonia is obtained by Haber’s process?
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