Question

On addition to baking soda to vinegar, we come to know that a chemical reaction
has occurred as:
(a) hydrogen gas is evolved.
(b) carbon dioxide gas is evolved.
(C) there is evolution of heat and (d) change in colour is observed.
light.

Answer 1

Answer:

(b) carbon dioxide gas is evolved.

Explanation:

A chemical reaction has occurred! Combining the vinegar (an acid) with the baking soda (a base) results in an entirely new substance, carbon dioxide.

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Answer 2

Answer:

carbon dioxide gas is evolved

Explanation:

because it is a chemical reaction