Yes, the acid in cola (like phosphoric acid) slowly breaks down sucrose into glucose and fructose over time in a process called hydrolysis. This reaction is sped up by the acidity and warmth of the drink, transforming the sucrose (cane sugar) into a nearly equal 1:1 mixture of glucose and fructose, a substance sometimes called invert sugar.

The process: The acidic environment in cola causes a chemical reaction known as hydrolysis, which splits the bond in the sucrose molecule to form one molecule of glucose and one molecule of fructose.

Speed: This reaction is slow at room temperature but is an ongoing process that occurs throughout the life of the beverage.

Result: After a time, a bottle of cola that originally contained sucrose will contain a mixture of free glucose and fructose. This is similar to what happens when the body digests sucrose in the stomach.

Monitoring: Some people can estimate the age of a bottle of cola by measuring the ratio of glucose to fructose, as the breakdown of sucrose progresses over time.

(https://guide.isbt.com/article/the-impact-of-sugar-inversion-on-soft-drinks-with-sugar.html)

acid in cola breaks down the sucrose of the cane sugar into basic glucose and fructose over time

wtf til then