Find the final product

Question: What will be the final product P of the following reaction?

Solution: To find out the final product let us treat the given reactant with the reagent step by step:

First the given reactant is treated with H₃O⁺.

[H₃0]+ is a hydronium cation, also known as hydroxonium. It's an acid according to Bronstend-Lowry theory, about bases and acids, because it can give of a [H]⁺ :

[H₃0] <--> H₂O + H⁺

So when given reactant reacts with H₃O⁺, it gives:

On heating the obtained product losses CO₂

Now the obtained alkene is react with O₃ and H₂O₂.

As a reagent, ozone is used to cleave alkenes. When alkenes are treated with ozone and H₂O₂, they are subjected to “Oxidative workup”, this breaks the carbon-carbon double bond to form carboxylic acid. 

Now this is final product P.