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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More s-Block and p-Block Elements questions
BeCl2 + LiAlH4 → X + LiCl + AlCl3
The hydride ion H- is stronger base than its hydroxide ion OH-. Which of the following reaction will occur if sodium hydride is dissolved in water:
When Na and Li placed in dry air we get:-
CsBr3 contains:
A salt 'X' on heating liberates one coloured gas and another colourless gas. Both the gases are paramagnetic. The salt 'X' may be:
When washing soda is heated :