Single Answer MCQ
Q-00004317

Which reaction exemplifies how non-metallic oxides can behave as acids?

1

CO2 + H2O → H2CO3

2

NaOH + HCl → NaCl + H2O

3

Fe + HCl → FeCl2 + H2

4

H2 + O2 → H2O

Answer and Solution

Answer

A. CO2 + H2O → H2CO3

Solution:

The reaction CO2 + H2O → H2CO3 shows carbon dioxide acting as a non-metallic oxide and forming carbonic acid.

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