5fe2+ + mno4- + 8h+ yields 5fe3+ + mn2+ + 4h2o in the equation above, a: h+ ions are reduced b: fe2+ ions are oxidized c: h+ is the oxidizing agent d: mno4- is the reducing agent

Option (D) is the correct answer.

Explanation:

A reducing agent is defined as an element or compound which accepts electron(s) and its oxidation number reduces.

For example,

Here, oxidation state of changes to , that is, it is oxidizing.

Whereas oxidation state of changes from , that is, changes from +7 to +2.

This means is the reducing agent.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.