The formula of an amphoteric oxide formed by a third period element is
A - VCE - SSCE Chemistry - Question 15 - 2004 - Paper 1
Question 15
The formula of an amphoteric oxide formed by a third period element is
A. Na2O
B. Al2O3
C. P4O10
D. Cl2O7
Worked Solution & Example Answer:The formula of an amphoteric oxide formed by a third period element is
A - VCE - SSCE Chemistry - Question 15 - 2004 - Paper 1
Step 1
Identify the Amphoteric Oxide
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Answer
Amphoteric oxides are those that can react with both acids and bases. In the context of third period elements, the relevant oxides are usually associated with elements like aluminum.
Step 2
Evaluate the Options
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Answer
Na2O: This is a basic oxide formed by a metal. It is not amphoteric.
Al2O3: Aluminum oxide can act as an amphoteric oxide, reacting with both acids and bases.
P4O10: This is an acidic oxide; it does not qualify as amphoteric.
Cl2O7: This is also an acidic oxide; hence, it is not amphoteric.
Step 3
Select the Correct Answer
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Answer
Based on the definitions and evaluations, the correct answer is B. Al2O3.
