Answer the following questions given below:
A Keerthi performs the following activity:
She takes a plastic bottle and fills it halfway with vinegar. She then puts baking soda inside an uninflated balloon. The balloon is carefully fixed to the mouth of the bottle without letting the baking soda fall into the vinegar. When the balloon is lifted, the baking soda mixes with vinegar, and the balloon slowly inflates.
Baking soda reacts with vinegar
i. What is the condition required for the reaction to start in this activity?
ii. Which gas is responsible for inflating the balloon?