dioxygen oxides sulfur dioxide to sulfur trioxide in presence of finally divided platinum catalyst. The temperature of reaction is
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D SO3 is formed when sulfur dioxide reacts with water in the air. D Sulfuric acid dissolves in the water in air and can remain suspended in air for varying periods of time.
The reactions of carbon and sulfur with oxygen are examples of non-metals reacting with oxygen. Carbon and sulfur both form dioxides with oxygen, but this is not true of all non-metals.
Adding an excess of oxygen to sulfur dioxide in the presence of the catalyst vanadium pentoxide at 450 °C and 1-2 atm. The sulfur trioxide formed is added to sulfuric acid which gives rise to oleum (disulfuric acid) The oleum is then added to water to form sulfuric acid which is very concentrated.
Explanation:
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