A: Lanthanoids have +3 as most common oxidation state. B: Electrons of – InterviewSolution

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1.	A: Lanthanoids have +3 as most common oxidation state. B: Electrons of 4f in lanthanoids rarely participate
Answer» If both Assertion & Reason are TRUE and the reason is the correct explanation of the assertion, then mark (1) If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2) If Assertion is true statement but Reason is false, then mark (3) Statement A is true ,Statement B is false Answer :A

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