AIIMS 2014 Chemistry Metallurgy MCQ Question
Assertion Al2O3 is converted to aluminium by reduction with carbon. Reason Carbon (graphite) has greater affinity for oxygen than Al.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
Both Assertion and Reason are true and Reason is not the correct explanation of Assertion
Assertion is true but Reason is false
Both Assertion and Reason are false
Correct Answer
Detailed Explanation
The correct answer is D because while the assertion that Al2O3 can be reduced to aluminum is true, the reason provided is false. Carbon does not have a greater affinity for oxygen than aluminum; in fact, aluminum has a stronger affinity for oxygen, which means that carbon cannot effectively reduce Al2O3 in this context. Instead, aluminum is typically extracted through electrolysis rather than reduction with carbon.
Found an issue with this question?