What is the bleaching action of so2?

The bleaching action of sulphur di oxide is temporary because it involves the process of reduction. sulphur di oxide removes oxygen from the coloured substance and makes it colourless. Atmospheric oxygen slowly takes place of the removed oxygen and because of which the material regains the colour.

What is bleaching action?

This is an oxidation process. When chlorine reacts with water, it produces nascent oxygen. This nascent oxygen combines with colored substances present in organic matter, and oxidizes it to colorless substances. Bleaching action of chlorine is permanent because it involves the oxidation process.

Can Sulphur dioxide be 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 is the bleaching action of ozone?

Hint- The bleaching action of ozone is because of its oxidation power. Ozone acts as the strong bleaching agent. Ozone has the capability to provide oxygen as well as the nascent oxygen. This production of nascent oxygen actually causes the bleaching action as it bleaches the color on a permanent basis.

Which is correct about bleaching action of ozone and Sulphur dioxide?

Bleaching action of ozone is based on oxidation while that of sulphur is based on reduction. Ozone produce oxygen and nascent oxygen. This nascent oxygen bleaches the colour permanently.

How does h2o2 act as bleaching agent?

H2O2 or hydrogen peroxide acts as a strong oxidizing agent both in acidic and basic media. When added to a cloth, it breaks the chemical bonds of the chromophores (colour producing agents). Hence, the visible light is not absorbed and the cloth gets whitened.

Which gas is responsible for bleaching action?

SO2 gas
SO2 gas is used as a bleaching agent.

What is the difference between bleaching properties of ozone and Sulphur dioxide?

Bleaching action of O3 is permanent while SO2 is temporary. Bleaching action of ozone is based on oxidation while that of sulphur is based on reduction. Ozone produce oxygen and nascent oxygen. This nascent oxygen bleaches the colour permanently.

What is bleaching action of ozone?

Why does chlorine act as a bleaching agent?

Hint: Chlorine can act as a bleaching agent due to the nascent oxygen it can produce in the reaction with water. Basically, one Cl atom gets oxidised and the other gets reduced when chlorine gas reacts with water.

What is the advantage of using hydrogen peroxide as bleaching agent?

Hydrogen peroxide is one of the most common bleaching agents. The positive aspects of hydrogen peroxide include the fact that it is highly environment-friendly (decomposes to O2 and H2O), colourless and non-corrosive.

Does H2O2 bleaches by oxidation?

Hint: Bleaching process is the same as oxidation. Hydrogen Peroxide (\[{{H}_{2}}{{O}_{2}}\]) is a colorless liquid, resembling water in many properties. Due to this reason \[{{H}_{2}}{{O}_{2}}\] can be used as a bleaching agent.

Can sulphur dioxide be bleached?

Check out us at:http://chemistry.tutorvista.comBleaching Action of Sulphur DioxideDry sulphur dioxide does not have any bleaching action. However, if the gas… Check out us at:http://chemistry.tutorvista.comBleaching Action of Sulphur DioxideDry sulphur dioxide does not have any bleaching action.

What is the bleaching action of SO2?

1. Bleaching action of SO2 is due to: 1. (b) Sulphur dioxide is a good reductant. In the presence of water, SO2 is able to decolorise substances. Specifically it is a useful reducing bleach for papers and delicate materials such as clothes. This bleaching effect normally does not last very long.

How does dry sulphur dioxide bleach clothes?

Dry sulphur dioxide does not have any bleaching action. However, if the gas is moist, or if the object to be bleached is moist, then bleaching takes place. Usually only delicate articles such as coloured flowers, silk, wool etc., are bleached by sulphur dioxide.

What happens to the colour of pigment when exposed to SO2?

The colour of pigment on exposure to SO2 gets reduced to a colourless compound. On standing in an air the colourless reduced product is reoxidised and gain the original colour. Bleaching with sulphur dioxide is therefore of temporary nature. It is generally used for bleaching delegate article like ivory, silk, wool etc.