Q. Which of the following will replace hydrogen from acids to form salts?
Answer: Na
Notes: All acids contain hydrogen atom (s). In aqueons state, they produce hydrogen ions. Dilute acids react with some metals that are more electro positive than hydrogen such as Sodium, Potassium, Calcium, iron, etc to form salts. Sodium replaces two hydrogen atoms from Sulfuric acid (H2SO4) to form a normal salt, Sodium Sulphate (Na2SO4). If only one atom of hydrogen is replaced by sodium, it forms an acid salt, Sodium Hydrogen Sulphate (NaHSO4).

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 80 in Chemistry-12-Acids, Bases and Salts in above course in App.