Question
Which of the following are found in biological fluids $$N{a^ + },M{g^{2 + }},C{a^{2 + }},{K^ + },S{r^{2 + }},L{i^ + }$$ and $$B{a^{2 + }}?$$
A.
$$M{g^{2 + }},C{a^{2 + }},\,{\text{and}}\,S{r^{2 + }}$$
B.
$$N{a^{2 + }}\,{\text{and}}\,{K^ + }$$
C.
$$N{a^ + },{K^ + },M{g^{2 + }}\,{\text{and}}\,C{a^{2 + }}$$
D.
$$S{r^ + },Li\,{\text{and}}\,B{a^{2 + }}$$
Answer :
$$N{a^ + },{K^ + },M{g^{2 + }}\,{\text{and}}\,C{a^{2 + }}$$
Solution :
Monovalent sodium and potassium ions and divalent magnesium and calcium ions are found in large proportions in biological fluids.