
$ S{O_3} $ can act as
(A) Oxidising agent
(B) Reducing agent
(C) Both a and b
(D) None
Answer
432.9k+ 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
Master Class 9 General Knowledge: Engaging Questions & Answers for Success

Earth rotates from West to east ATrue BFalse class 6 social science CBSE

The easternmost longitude of India is A 97circ 25E class 6 social science CBSE

Write the given sentence in the passive voice Ann cant class 6 CBSE

Convert 1 foot into meters A030 meter B03048 meter-class-6-maths-CBSE

What is the LCM of 30 and 40 class 6 maths CBSE

Trending doubts
Which one is a true fish A Jellyfish B Starfish C Dogfish class 11 biology CBSE

What is the difference between superposition and e class 11 physics CBSE

State and prove Bernoullis theorem class 11 physics CBSE

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

State the laws of reflection of light

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE
