List of top Chemistry Questions on properties of d block elements asked in AP EAPCET

Which of the following transition elements exhibits the highest oxidation state?

The period number and group number of platinum in the long form of periodic table are respectively:

Assertion (A): The stability of Cu\(^ {2+}\) ions is less than Cu\(^+\) in their aqueous solution.
Reason (R): Aqueous Cu\(^ {2+}\) has more negative \(\Delta_{hyd}H^0\) than Cu\(^+\).

High second ionization enthalpies than expected are observed for