Na + Al2O3 →(high temperature) X (CO2 in water)→ Y ; compound Y is :
Correct answer: C. Na2CO3
- A. NaAlO2
- B. NaHCO3
- C. Na2CO3
- D. Na2O2
Explanation
During the reaction, Na reacts with Al2O3 at high temperatures to yield Na2O and Al. The Na2O then further reacts with CO2 in water to form Na2CO3, which is compound Y. Therefore, Na2CO3 is the correct answer. The other options are incorrect because NaAlO2 and NaHCO3 do not match the final product, and Na2O2 is not part of this reaction sequence.
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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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