alleryCuO + 2 HCl → CuCl₂ + H₂O shows that a metallic oxide behaves like a:
Aacid
Bneutral oxide
Cbase
Dsalt
Answer & Solution
Correct answer: C. base
The reaction is structurally identical to acid + base
→ salt + water, so the metallic oxide CuO is acting like a base.
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