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The correct answer is 2SO3=>2SO2+O2

Explanation:

Reverse reaction is defined as the chemical reaction in which the reactants forming products at first,react together to give back the reactants.

Forward reaction is given by the equation:

A+B=>C+D

Now ,the reverse reaction for this will be:

C+D=>A+B

•According to the question:

sulfur dioxide and oxygen are reacting together to form sulfur trioxide. The forward reaction for this will be:

2SO2+O2=>2SO3

The reverse reaction for this will be :

2SO3=>2SO2+O2

Hence,the correct answer is option D.

I hope it's helpful!

d

explanation: