Chemistry · d- and f-Block Elements
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R): Assertion (A): The chemical separation of Zirconium (Zr) and Hafnium (Hf) is extremely difficult. Reason (R): Zr and Hf have almost identical ionic and atomic radii due to lanthanoid contraction. Select the correct option:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Assertion (A) is false, but Reason (R) is true.
- 2Assertion (A) is true, but Reason (R) is false.
- 3Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
- 4Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).✓
Correct answer
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
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