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MHT CET202312 May 2023Morning ShiftChemistryd and f Block ElementsActual

What is the numerical value of spin only magnetic moment of copper in +2 state?

Options

  1. A0.0
  2. B1.73
  3. C2.78
  4. D4.4

Correct answer

B. 1.73

Step-by-step solution

aligned & Cu ( Z =29):[ Ar ] 3 ~d ¹⁰ 4 ~s ^1 & Cu ²⁺:[ Ar ] 3 ~d ^9 & No. of unpaired e ⁻=1 & = n ( n +2) = 1(1+2) = 3 =1.73 BM aligned

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