Home » Which element is always present in Arrhenius acid? Acids Bases and Salts MCQs Which element is always present in Arrhenius acid? December 28, 2021 5 Views Q. Which element is always present in Arrhenius acid? OxygenNitrogenHydrogenNone of these Answer: Hydrogen
During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to
Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?