Practical chemistry

This course is all about salt analysis. It demonstrates the preliminary and confirmatory tests for various anions and cations . This course is based on class 12th chemistry  practicals of cisce board( council of indian school certificate examinations) . In our system cations and anions are grouped into various groups. 

For Anions:

1) dilute acid group: CO3--,SO3--,S--, NO2-,CH3COO--

2)conc.H2SO4 group: Cl-,NO3-,Br-,I-,C2O4--

3)Special group : SO4--

For Cations : ( common reagent is written in bracket)

Group 0(dil.NaOH) : NH4+

Group 1(dil.HCl) : Pb++,Ag+,Hg+

Group 2(dil.HCl + H2S) : Pb++,Cu++,Sn++,Sn++++,

Group 3(NH4Cl + NH4OH): Al+++,Cr+++,Fe+++

Group 4(NH4Cl + NH4OH + H2S) : Zn++,Mn++,Co++,Ni++

Group 5(NH4Cl + NH4OH + (NH4)2CO3): Ba++,Sr++,Ca++

Group 6: Mg++

Each group has a common reagent. except for the special group(anions)and group 6(cations).Many videos have been uploaded and many will be uploaded soon.