What ion is part of all nucleic acids?

a. Fluorine

c. Phosphoric acid

b. Chloride

d. Nitrogenic acid

The correct among the choices is option C. The ion that is part of all nucleic acids is phosphoric acid. Nucleic acids are large biomolecules that is important for all life forms. DNA and RNA are nucleic acids. These biomolecules are made from monomers called nucleotides. Each monomer is composed of 5 carbon sugar, a nitrogeneous base and a phosphate group.