Http://i65.tinypic.com/ou8n12.jpg - Question 7 why is the answer (c)..?

7.
A. False
Most metallic oxides are basic oxides, but a few are amphoteric (e.g. ZnO).

B. False
Most non-metallic oxides (e.g. SO₂) do not react acids to produce a salt.

C. True
Water (H₂O) and carbon monoxide (CO) are oxides which are neutral.

D. False
Acidic oxides react with bases (alkalis) to produce a salt.

...... The answer is : C. Water and carbon monoxide are neutral oxides.