In the given reaction, Al2O3 + NaOH → ……X…… + H2O What is element X?
Question
a) NaAlO2
b) Na3Al
c) Na2O3
d) NaAl2O3
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Class 10 science
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2021-12-16T19:16:08+00:00
2021-12-16T19:16:08+00:00 1 Answer
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Answer ( 1 )
Answer: (a) NaAlO2
Explanation: Aluminium oxide is
amphoteric in nature, i.e., it reacts
with acids as well as bases to form
salt and water.
Here, aluminium oxide behaves as
an acid as it reacts with NaOH, a
base and forms sodium aluminate
(NaAlO2) and water:
Al2O3 +
NaOH → 2NaAlO2+ H2O