Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor . It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur. ... In nature, volcanic eruptions can release sulfur dioxide into the air.
What is true about sulfur dioxide?
Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor . It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur. ... In nature, volcanic eruptions can release sulfur dioxide into the air.
What are the properties of sulfur dioxide?
- Sulfur dioxide appears as a colorless gas with a choking or suffocating odor. Boiling point -10°C. ...
- 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 is a sulfur oxide.
Which of the following is the use of sulfur dioxide?
Although its chief uses are in the preparation of sulfuric acid, sulfur trioxide, and sulfites, sulfur dioxide also is used as a disinfectant , a refrigerant, a reducing agent, a bleach, and a food preservative, especially in dried fruits.
What is the main cause of sulfur dioxide?
These gases, especially SO2, are emitted by the burning of fossil fuels — coal, oil, and diesel — or other materials that contain sulfur. Sources include power plants, metals processing and smelting facilities, and vehicles.
What are the effects of sulphur dioxide on human body?
Health effects
Sulfur dioxide affects the respiratory system , particularly lung function, and can irritate the eyes. Sulfur dioxide irritates the respiratory tract and increases the risk of tract infections. It causes coughing, mucus secretion and aggravates conditions such as asthma and chronic bronchitis.
What should you do if you are exposed to sulfur dioxide?
Sulfur dioxide reacts with body moisture to form sulfurous and sulfuric acids; therefore, chemical burns are likely. Handle burned skin with caution. Flush exposed or irritated eyes with plain water or saline for at least 5 minutes. Remove contact lenses if easily removable without additional trauma to the eye.
Is sulfur dioxide toxic to humans?
Sulphur dioxide is widely used in the food and drinks industries for its properties as a preservative and antioxidant. Whilst harmless to healthy persons when used in recommended concentrations, it can induce asthma when inhaled or ingested by sensitive subjects, even in high dilution.
What happens when energy hits sulfur dioxide?
What happens when energy hits sulfur dioxide? When energy hits sulfur dioxide, more energy is created . Sulfur dioxide traps some energy and holds it in the atmosphere. Sulfur dioxide redirects (bounces) some incoming energy from the sun back toward outer space.
Is Sulphur dioxide acidic or basic?
Sulphur dioxide is an acidic gas and this can easily be demonstrated by adding water and a few drops of universal indicator to a container of the gas. The resulting acid is the weakly dibasic acid sulphurous acid (H 2 SO 3 ).
How is the presence of SO2 detected?
It can be detected with the help of potassium permanganate solution. When SO 2 is passed through an acidified potassium permanganate solution, it decolonizes the solution. SO 2 gives a pungent suffocating smell which indicates the presence .
Is sulfur dioxide used as a bleach?
As a reducing agent
In the presence of water, sulfur dioxide is able to decolorize substances. Specifically, it is a useful reducing bleach for papers and delicate materials such as clothes.
What are the two major sources of sulfur dioxide and where are they located?
The main sources of SO 2 emissions are from fossil fuel combustion at power plants, refineries, and other industrial facilities . Secondary sources of SO 2 emissions include ore smelters and the burning of high sulfur fuel by trains, large ships, and non-road equipment.
Which is the major source for sulphur dioxide Mcq?
Explanation: Though emission of sulphur dioxide is peak during volcanic eruptions, its major source is during combustion of crude oil and coal for heat and power generation.
How can we reduce sulfur dioxide?
Reducing Pollution
One option is to use coal that contains less sulfur . Another option is to “wash” the coal to remove some of the sulfur. The power plant can also install equipment called scrubbers, which remove the sulfur dioxide from gases leaving the smokestack.
