Chemistry
The metallic oxide which when reacts with HCl forms salt and water:
- Carbon monoxide
- Nitrous oxide
- Ammonium hydroxide
- Sodium oxide
Hydrogen Chloride
ICSE 2022
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Answer
Sodium oxide
Reason — Sodium oxide reacts with HCl and forms the salt sodium chloride and water
2HCl + Na2O ⟶ 2NaCl + H2O
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