1.

(A) Elements of 4f sries are called Lanthanides (R) Lanthanum Belongs to 'f' block

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 :Both (A) and (R) are true and (R) is not the correct explanation of (A)


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