Question

The hissing sound that you hear while opening a bottle of Coke is the result of gas which was previously dissolved in the Coke, escaping from solution and "whizzing" through the small opening in the Coke bottle you have created by opening the top. The hissing noise is the same hissing noise you hear when you deflate a bike tire, or let helium out of a tank; it is the sound of rushing gas. But an important question is : Which one of the following gases rush out of the Coke bottle ? *
1 point

*Oxygen
*Hydrogen
*Nitrogen
*Carbon dioxide​

Answer 1

The gas released was CO2.

Answer 2

Carbon dioxide is present in the soft drinks . When opened , the bottle produces a whizzing sound.

Hope it helps you :)