2. when you add water to sulfur dioxide and put a
a blue litmus papers in it, why does it turu red
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Answer:
Heating of crystals of ferrous sulphate releases gases like SO2 and SO3. These are the acidic oxides of sulphur. ... So, since SO2 and SO3 are acidic, so the moist blue litmus becomes red
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Sulfur dioxide is a colorless gas with a pungent odor. It is a liquid when under pressure, and it dissolves in water very easily. Sulfur dioxide in the air comes mainly from activities such as the burning of coal and oil at power plants or from copper smelting. In nature, sulfur dioxide can be released to the air from volcanic eruptions.
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