Chemistry

Salt Analysis of Cations and Anions | Preliminary Tests of Cations and Anions Salt Analysis Cations Group Group Reagent Radicals Zero Group O.S. + NaOH + Heat NH4+ I Group O.S. + HCl Pb2+ II Group O.S. + HCI + H2S Cu2+ III Group O.S. +NH4Cl + NH4OH AI2+ ,Fe3+ IV Group O.S. + NH4CI + NH4OH +H2S Ni2+ ,Mn2+ , Zn2+ ,Co2+ V Group O.S. + NH4CI + NH4OH +(NH4)2CO3 Ba2+, Ca3+, Sr2 VI Group O.S + NH4CI + NH4OH + NaH2PO4 Mg2+

Chemistry, Important Topics Tags: Preliminary Tests of Cations Anions, Salt Analysis

Each orbital in an atom is specified by a set of three quantum numbers (n, ℓ, m) and each electron is designated by a set of four quantum numbers (n, ℓ, m and s).Principle quantum number (n) : It was proposed by Bohr and denoted by n.It determines the average distance between electron and nucleus, means it denotes the size of atom.

Chemistry, Important Topics Tags: Azimuthal quantum number, Magnetic quantum number, Principle quantum number, Quantum Numbers and Orbitals, Qunatum Numbers, Qunatum Numbers in Chemistry, Spin quantum numbers

  1) Rutherford carried out experiment on the bombardment of thin (10-4 mm) Au foil with high speed positively charged a- particles emitted from Ra and gave the following observations based on this experiment, (i) Most of the a- particles passed without any deflection. (ii) Some of them were deflected away from their path. (iii) [...]

Chemistry, Important Topics, Physics Tags: Rutherford Experiment, Rutherford Nuclear Model

In some cases for example, sulphides ores of copper, zinc and lead concentration is brought by this method. In this method advantage is taken of the referential wetting of the ore by an oil.The finely ground ore is taken in a tank containing water and 1% of pine oil or terpentine oil. A strong current [...]

Chemistry, Important Topics Tags: Froth Floatation Process, Froth Floatation Sulphide Ores