This smog is formed by the mixture of smoke, fog, and sulfur dioxide. This smog also acts as a reducing agent in atmospheric pollution. Therefore, it is also known as reducing smog. Hence the correct answer is option C.
Why is it called reducing smog?
Classical smog is a mixture of smoke, fog and SO2 Chemically it is a reducing mixture and so it is called as reducing smog.
Is London smog reducing smog?
Reducing smog is also sometimes called London-type smog, because of famous incidents that occurred in that city during the 1950s. Reducing smogs first became common when industrialization and the associated burning of coal caused severe air pollution by sulfur dioxide and soot in European cities.
Which smog is reducing?
classical smog
Photochemical smog occurs in warm dry and sunny climate. Photochemical smog is an oxidizing smog whereas classical smog is an reducing smog.
Why is it called London smog?
London had experienced these types of smog before. They were called “pea-soupers” due to their yellowish-brown appearance. Today, pea-soupers are known as sulphurous smog or “London smog”. These result from a high concentration of sulphur oxides (SOx) in the atmosphere from fossil fuels high in sulphur, such as coal.
Is classical smog is also called reducing smog?
Classical smog is mixture of smoke, fog and sulphur dioxide. Chemically it is a reducing mixture. It is also known as reducing smog.
What is oxidising and reducing smog?
Photochemical smog is sometimes called as Oxidizing smog as it contains high concentrations of oxidizing agents like Ozone, HNO3 whereas Classical Smog is called Reducing as it contains high concentrations of sulphur dioxide, which is a reducing agent.
How does London reduce pollution?
The ULEZ is one of several London air pollution policies introduced since 2016 like the Low Emission Zone, Low Emission Bus Zones, and bus and taxi electrification.
What type of smog is London smog?
Sulfurous smog
Sulfurous smog (London smog)
This type of air pollution emerges as a result of burning coal, the accumulation of particulate matter from industrial activity and a drop in temperature. The polluting particles mix with the cold air to form a thick fog that significantly worsens overall air quality.
What is London smog called?
Sulfurous smog
Sulfurous smog, which is also called “London smog,” results from a high concentration of sulfur oxides in the air and is caused by the use of sulfur-bearing fossil fuels, particularly coal.
Is London smog is oxidising in nature?
Photochemical smog is oxidising in nature. And London smog is reducing in nature. Thus, the statement ‘London smog is oxidising in nature’ is false.
What are two ways that smog can be reduced?
On Days when High Particle Levels are Expected, Take these Extra Steps to Reduce Pollution:
- Reduce the number of trips you take in your car.
- Reduce or eliminate fireplace and wood stove use.
- Avoid burning leaves, trash, and other materials.
- Avoid using gas-powered lawn and garden equipment.
Which smog is also called oxidizing smog?
Photochemical smog
Oxidation: Photochemical smog is also referred to as oxidizing smog.
What is London smog Class 11?
London smog is also known as classical smog. It is mainly caused by the air pollution and air pollution is caused due to combustion of coal and emission of sulfur dioxide and dust also.
Why is there so much smog in London?
A period of unusually cold weather, combined with an anticyclone and windless conditions, collected airborne pollutants—mostly arising from the use of coal—to form a thick layer of smog over the city.
When was London’s last smog?
The 1962 London smog was a severe smog episode that affected London, England in December 1962. It occurred ten years after the Great Smog of London, in which serious air pollution had killed as many as 12,000 people.
What is the difference between London type smog and photochemical smog?
As the reaction take place in the presence of light to form the smog, it is called photochemical smog.
Classical Smog vs Photochemical Smog.
| London smog or Classical smog | Los Angeles smog or Photochemical smog |
|---|---|
| It involves smoke and fog (smog) | The word smog is misnomer here as it does not involve any smoke or fog. |
What are the two other names for photochemical smog?
Synonyms
- exhaust fumes.
- pollution.
- fog.
- haze.
- vapour.
- pea-souper.
What is difference between classical smog and photochemical smog?
How is classical smog different from photochemical smog?
| Classical smog | Photochemical smog | |
|---|---|---|
| Occurrence | It occurs in a cool, humid climate. | It occurs in a dry, sunny climate. |
What is oxidising and reducing process?
An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
What is the difference between a reducing atmosphere and an oxidizing atmosphere?
In a reducing atmosphere, hydrogen is present but oxygen is absent. For the Miller-Urey experiment to work, a reducing atmosphere is a must. An oxidizing atmosphere makes producing organic compounds impossible.