HCl is added to the following oxides. Which one would give H₂O₂?
Correct answer: C. BaO2
- A. MnO2
- B. PbO2
- C. BaO2
- D. None of the above
Explanation
Hydrogen peroxide (H₂O₂) is formed by the reaction of an acid with a peroxide. Barium peroxide (BaO₂) reacts with HCl to form BaCl₂ and H₂O₂. The other oxides listed are not peroxides.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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