Magnetic moment of Cr ²⁺ is nearest to

Step-by-step solution

Cr ²⁺=3 d^4 , No. of unpaired electrons (n)=4 Magnetic moment = (+2) BM = 4(4+2) = 24 =4.89 BM Fe ²⁺=3 d^6 , No. of unpaired electrons (n)=4 Magnetic moment = 4(4+2) BM = 24 =4.89 BM Mn ²⁺=3 d^5 , No. of unpaired electrons (n)=5 Magnetic moment = 5(5+2) BM = 35 =5.91 BM Co ²⁺=3 d^7 , No. of unpaired electrons (n)=3 Magnetic moment = 3(3+2) BM = 15 =3.87 BM Ni ²⁺=3 d^8 , No. of unpaired electrons (n)=2 Magnetic moment = 2(2+2) BM = =2.82 BM