Here students can locate TS Inter 1st Year Chemistry Notes 8th Lesson Hydrogen and its Compounds to prepare for their exam.
TS Inter 1st Year Chemistry Notes 8th Lesson Hydrogen and its Compounds
→ The only element that is placed in different groups of long form of periodic table is Hydrogen. The groups are IA, VIIA, etc.
→ Oxides of IA groupware basic while oxides of VIIA group are acidic. But water is practically neutral.
→ In non-metal hydrides, hydrogen exhibits +1 oxidation state while in metal hydrides hydrogen exhibits – 1 oxidation state.
→ Atoms of the same element with different mass numbers are called Isotopes.
→ Protium, Deuterium and Tritium are the three isotopes of Hydrogen.
→ Tritium is the lightest radioactive isotope. It decays by beta emission.
→ Hydrogen is a potential fuel. It has many industrial applications and is a source for atomic energy.
→ Water which does not produce lather readily with soap is called Hard water.
→ The reason for the hardness of water is the presence of dissolved salts of Ca+2 and Mg+2 ions.
→ Hardness of water can be removed by boiling, Clark’s process, Soda process, Calgon Process, Permutit process and use of Ion- exchange resins.
→ Deuterium oxide is also called Heavy water.
→ Heavy water is prepared by the exhaustive electrolysis of N/2 NaOH solution.
→ Heavy water is used as moderator in nuclear reactor for slowing down the speed of neutrons.
→ The structural unit in a peroxide is O2-2 and has the O-O bond, called peroxy bond.
→ H2O2 molecule has open book structure.
→ 30% solution of H2O2 is called perhydrol.