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Yogita Ingle 5 years, 2 months ago (2577571)
Sulphur sol and gold sol are Lyophobic sols and are unstable and are build to colloidal size from small particles by the Condensation method by Chemical reactions.
Oxidation sulphur sol is prepared by passing H2S into SO2
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H2S + SO2 → S (sol) + H2O
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Reduction of AuCl3 with formaldehyde gives gold sol.
AuCl3+ HCHO + 3H2O → Au (sol) + 3HCOOH + 6HCl
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Yogita Ingle 5 years, 2 months ago (2577571)
In our Solar System, there are eight planets. The planets in order from the Sun based on their distance are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
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Yogita Ingle 5 years, 2 months ago (2577571)
Some of the direct sources are:-
- Mining: It is a process by which commercially variable valuable mineral resources are extracted from Earth’s surface which includes precious stones, rocks and solid fuels.
- Drilling: Scientists world over are working on two major projects such as “Deep Ocean Drilling Projects” and “Integrated Ocean Drilling Project”. The deepest drill at Kola, in Arctic Ocean, has so far reached a depth of 12 km.
- Volcanic Eruptions: When molten material is thrown onto the surfaced the earth during volcanic eruption it becomes available for analysis
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Yogita Ingle 5 years, 2 months ago (2577571)
Nutrition is the process of obtaining food by the organism and digesting the complex nutrients in the food. In respiration, the energy present in the food (taken in through nutrition) is released and used to carry out the bodily processes.
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