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NEETChemistryd and f Block Elements

Statement (I) Co ²⁺ has higher magnetic moment than Cr ³⁺ . Statement (II) Ionisation enthalpies of Ce, Pr and Nd are higher than Th , Pa , U . Which of the following is correct?

Options

  1. ABoth (l) and (II) are not correct
  2. BBoth (I) and (II) are correct
  3. C(l) is correct but (II) is not correct
  4. D(l) is not correct but (II) is correct

Correct answer

D. (l) is not correct but (II) is correct

Step-by-step solution

Statement (I) is not correct, as magnetic moment of Cr ³⁺ is more than of CO ²⁺ . But, statement (II) is correct, as I.P. of Ce, Pr and Nd are higher than th, Pa and U. Thus, the correct option is (4).

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