Question

iv)Effervescence produced on mixing
sodium bicarbonate
and acetic acid is due the evolution of
a)sulphurdioxide
b)nitrogendioxide
c)carbondioxide
d)Hydrogen sulphide​

Answer 1

Answer:

Oxygen uptake is a strong reducing agent of a number of companies that are not the same

Answer 2

c) carbon dioxide. is your answer

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