Physiology Which of the following is NOT true statement about ions in extra and intracellular compaments? A Cl- is the main anion in interstitial fluid B Na+ is main cation in plasma C Mg2+ is second major cation present in intracellular fluid after K+ D HC03- is mainly present in intracellular fluid 💡 Explanation Which of the following is NOT true statement about ions in extra and intracellular compaments? ✓ Correct Answer: D. HC03- is mainly present in intracellular fluid