• 072920 77839
  • info@smartachievers.in
Menu
Back
  • JEE ADVANCE
  • JEE MAIN
  • NEET
  • BITSAT
  • CBSE BOARD
  • UP BOARD
  • CUET
JEE ADVANCE
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
JEE MAIN
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
NEET
  • CLASS XI - XII
  • CRASH COURSE
BITSAT
  • CLASS XI - XII
CBSE BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
  • CLASS VI
  • CLASS VII
  • CLASS VIII
UP BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
CUET
  • CRASH COURSE
Courses


Solution


Q.

The 'spin only' magnetic moment value of MO42- is ______ B.M. (Where M is a metal having least metallic radii. among Sc, Ti, V, Cr, Mn, and Zn).

(Given atomic number: Sc = 21, Ti = 22, V = 23, Cr = 24, Mn = 25, and Zn = 30)                                   [2024]

Ans.

(0)

Element Sc Ti V Cr Mn Zn
Metallic radius (pm) 164 147 135 129 137 137

Least metallic radius is of Cr among given elements.

Compound Electronic
configuration of
central atom		 Number of
unpaired
electrons (n)		 Spin only magnetic
moment (μ)= n(n+2)BM
CrO42- Cr+6=[Ar]183d04s0          0                     0