In which of the following pairs, there is greatest difference in the oxidation number of the underlined elements ?

In which of the following pairs in there the greatest difference in the oxidation numbers of the underlined elements?

In which of the following pairs is there the greatest difference in the oxidation numbers of the underlined elements?

In which of the following pairs is there the greatest difference in the oxidation numbers of the underlined elements?

In which of the following pairs in there the greatest difference in the oxidation numbers of the underlined elements?

Assign oxidation number of the underlined element. NaHulSO_4

Calculate the oxidation number of underlined element. KI_(-3)