The d-and f-Block Elements / d तथा f ब्लॉक के तत्व
JEE Main & Advanced
Chemistry
The d-and f-Block Elements / d तथा f ब्लॉक के तत्व
Question Bank
Numerical Value Type Questions - The d- and f-Block Elements
question_answer
Four successive members of the first series of the transition metals are listed below. How many of them have the standard potential \[\left( E_{{{M}^{2+}}/M}^{{}^\circ } \right)\] value with positive sign? (I) Co (Z=27) (II) Ni (Z=28) (III) Cu (Z=29) (IV) Fe (Z=26)