1.

(A) The most common oxidation state of lanthanides is + 3. (R) Lanthanides have three electrons in their outermost shell.

Answer»

Both (A) and (R) are TRUE and (R) is the CORRECT EXPLANATION of (A)
Both (A) and (R) are true and (R) is not the correct explanation of (A)
(A) is true but (R) is FALSE
Both (A) and (R) are false

Solution : (A) is true but (R) is false


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