JEE Main20244 Apr 2024Evening ShiftChemistryd and f Block ElementsActual
A first row transition metal with highest enthalpy of atomisation, upon reaction with oxygen at high temperature forms oxides of formula ( M ₂ O _ n ) (where ( n =3,4 ), 5). The 'spin-only' magnetic moment value of the amphoteric oxide from the above oxides is ______ ( BM ) (near integer) (Given atomic number: ( Sc : 21, Ti : 22, ~V : 23, Cr : 24, Mn : 25, Fe : 26, Co : 27 ), ( Ni : 28, Cu : 29, Zn : 30 ))
Correct answer
0
Step-by-step solution
' V ' has highest enthalpy of atomisation ( 515 ~kJ / mol ) among first row transition elements. V ₂ O ₅ Here ' V ' is in +5 oxidation state V ⁺⁵ 1 ~s ^2 2 ~s ^2 2 p ^6 3 ~s ^2 3 p ^6 (no unpaired electrons)