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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS
1
Medium
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Analyzing
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Assertion: Europium (II) is more stable than cerium (II).
Reason: Cerium salts are used as catalyst in petroleum cracking.
Reason: Cerium salts are used as catalyst in petroleum cracking.
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Correct option: B
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
Option B (If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion) is correct because both the assertion about Europium(II) stability and the reason about Cerium salts being catalysts are true, but unrelated.
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