Which of the following metals is the most essential in the regulation of blood volume, blood pressure and osmotic equilibrium? by Sunday | Jan 2 | Chemistry WAEC | 0 comments A. Zinc B. Manganese C. Sodium D. Iron Correct Answer: Option C C. Sodium Users Also Read These:Which of the following non-metals reacts most…The volume of an ideal gas at a pressure of 77cmHg…A fixed mass of gas occupies a volume of 20cm³ at a…A gas at a volume of V0 in a container at pressure…The volume of a fixed mass of gas is 10cm³ when its…