Laboratory Preparation of Hydrogen Gas In the laboratory method, hydrogen gas is prepared by reaction of Zinc granules with dil. Sulphuric Acid (H2SO4) or dil hydrochloric acid (HCl) Zn + dil H2SO4 ———> ZnSO4 + H2 Zn + dil HCl——-> ZnCl2 + … Read more
Category: CHEMISTRY
Hydrogen and its compounds
Hydrogen and its compounds: Introduction Hydrogen is the lightest element in the periodic table with Atomic number Hydrogen 1and the symbol H. The standard atomic weight of Hydrogen element 1.008,. It is the most abundant chemical substance in the Universe, … Read more
Definition of Lubricity and Lubricity Test Method
What is Lubricity ???[Defination of Lubricity] The lubricity is defined as the ability of fluid to minimize friction between and damage to surfaces in relative motion under load. The study of lubrication and wear mechanisms is called tribology. The test … Read more
Noble Gases]: Properties-Occurrence-Isolation-Uses
Noble Gases: Properties-Occurrence-Isolation-Uses Noble Gases What are Noble Gases 18th group or Zero group in the periodic table contains six elements Helium(He), Neon(Ne), Argon(Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). These collectively called inactive or inert gases because they have … Read more