Revision Notes on Hydrogen: Hydrogen Element: Atomic number = | NEET_JEE_NCERT_TRICKS
Revision Notes on Hydrogen:
Hydrogen Element:
Atomic number = Mass Number = 1
Isotopes of hydrogen:
1H1 : Protium , Most abundant in nature
2H1: Deuterium (D), Component of heavy water.
3H1 : Tritium (T) , Radioactive in nature
Dihydrogen:
a. Laboratory preparation:
Reaction of metals with acids. Zn + H+→ Zn2++H2
b. Commercial Preparation:
Electrolysis of acidified water
Electrolysis of warm aqueous Ba(OH) 2 between nickel electrodes.
By-product in the manufacture of NaOH and Cl2 by electrolysis of brine solution.
