Need some help about Coca Cola?

Question

if the pH of a drink is 2.5 then which one of the cola drink causes the low pH?

carbonate water,sugar colouring, phosphoric acid, preservative flavouring

Answer 1

phosphoric acid

Answer 2

carbonate water and phosphoric acid.

carbonate water is formed by a process called carbonation where they add carbon dioxide (CO2) into the water, which partially form a weak acid called carbonic acid (H2CO3). this easily forms back carbon dioxide, as you can see when you shake coca cola.

but the main source of acid is the phosphoric acid (H3PO4). this usually stays in the drink for longer periods of time even after you open the can or bottle

Answer 3

Phosphoric acid.