A disproportionation reaction is a type of redox reaction where a single substance is simultaneously oxidized and reduced, forming two different products. Only species in an intermediate oxidation state can undergo such reactions.
The given species are analyzed as follows:
From the list, the species that can undergo disproportionation reactions are:
H2O2, P4, Cl2, Cu+, NO2
Total number of species = 6.
Given below are two statements:
Statement (I): The first ionization energy of Pb is greater than that of Sn.
Statement (II): The first ionization energy of Ge is greater than that of Si.
In light of the above statements, choose the correct answer from the options given below: