The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29 ) is ___ BM .

The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29) is ___ BM.

Solution

Z=29Cu

Cu2+ form CuH2O42+ complex ion with H2O

CuH2O42+⇒Cu2+Ar3 d9,H2O→WFL

number of unpaired e-=1

μ=11+2B.M

μ=3⇒1.73 B.M.⇒round off ans. ⇒2

Asked in: JEE Main 2021 (25 Feb Shift 2)

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