$ S{O_3} $ can act as
(A) Oxidising agent
(B) Reducing agent
(C) Both a and b
(D) None
Last updated date: 20th Mar 2023
•
Total views: 205.5k
•
Views today: 3.84k
Answer
205.5k+ views
Hint :An oxidising agent gains electrons and gets reduced in a chemical reaction. A reducing agent loses electrons and it gets oxidised in a chemical reaction. A reducing agent is in one of its lowest possible oxidation states and is also called an electron donor.
Complete Step By Step Answer:
Sulphur trioxide is a chemical compound and it is represented by the chemical formula $ S{O_3} $ . It exists in a number of modifications that differ in molecular species and in crystalline form. It is colourless in its liquid form. It is a highly reactive substance and also a strong oxidising agent. It also acts as a fire hazard. It is a thermodynamically unstable compound with respect to the compound selenium dioxide. In $ S{O_3} $ sulphur is in $ + 6 $ oxidation state which is its highest oxidation state. So, it cannot be oxidized further. Hence, it acts as a strong oxidizing agent and because of this $ S{O_3} $ itself gets reduced and oxidised other compounds. $ S{O_3} $ is not used as a reducing agent as it cannot donate a lone pair of electrons. The bleaching action of sulphur is based on the oxidation.
Therefore, option A is the correct answer.
Note :
$ S{O_3} $ is used as a bleaching agent to remove the residual hydrogen peroxide or as a digesting agent to separate the pulp from lignin. It is also used as a catalyst in the oxidation reaction of sulphur dioxide to sulphur trioxide. It is used in the manufacture of photoelectric cells and also solar energy devices.
Complete Step By Step Answer:
Sulphur trioxide is a chemical compound and it is represented by the chemical formula $ S{O_3} $ . It exists in a number of modifications that differ in molecular species and in crystalline form. It is colourless in its liquid form. It is a highly reactive substance and also a strong oxidising agent. It also acts as a fire hazard. It is a thermodynamically unstable compound with respect to the compound selenium dioxide. In $ S{O_3} $ sulphur is in $ + 6 $ oxidation state which is its highest oxidation state. So, it cannot be oxidized further. Hence, it acts as a strong oxidizing agent and because of this $ S{O_3} $ itself gets reduced and oxidised other compounds. $ S{O_3} $ is not used as a reducing agent as it cannot donate a lone pair of electrons. The bleaching action of sulphur is based on the oxidation.
Therefore, option A is the correct answer.
Note :
$ S{O_3} $ is used as a bleaching agent to remove the residual hydrogen peroxide or as a digesting agent to separate the pulp from lignin. It is also used as a catalyst in the oxidation reaction of sulphur dioxide to sulphur trioxide. It is used in the manufacture of photoelectric cells and also solar energy devices.
Recently Updated Pages
In India on the occasion of marriages the fireworks class 12 chemistry JEE_Main

The alkaline earth metals Ba Sr Ca and Mg may be arranged class 12 chemistry JEE_Main

Which of the following has the highest electrode potential class 12 chemistry JEE_Main

Which of the following is a true peroxide A rmSrmOrm2 class 12 chemistry JEE_Main

Which element possesses the biggest atomic radii A class 11 chemistry JEE_Main

Phosphine is obtained from the following ore A Calcium class 12 chemistry JEE_Main
