1 ) Ammonium cations (NH4+)
Take a small amount of salt through adding NaOH in it. Warmth this mix till the smell of NH3 and white gases are acquired when fly fishing rod dipped in conc. HCl is put on the mouth of the test out tube.
Take two drops from the salt remedy and add Nesslers reagent to it. (K2HgI4) A red brown ppt is noticed.
2 . Lead Cations(Pb2+)
To the sodium solution add dil. HCl. If white ppt can be obtained lead cations exist.
Break down the small sum of light ppt in min sum of boiled water. To acquire a clear solution.
3. Radium cations
Take the sodium solution through adding dil. HCl and add sodium sulphide to it. A yellow ppt is discovered which indicates radium cations.
Take a tiny amount of yellow ppt and dissolve it in minimum sum of dil. HCl and boil to obtain a clear solution. 4. Birdwatcher cations(Cu2+)
To the salt option add dil. HCl and Na2S (sodium sulphide). A black ppt is formed which indicates the presence of copper mineral cations.
Into a small amount of dark-colored ppt put dil. HNO3 and steam off the H2S gas to obtain a clear option. To this put excess of ammonium hydroxide to obtain a deep blue colour.
your five. Ferrous cations(Fe2+)
To the sodium solution add NH4Cl, and excess of NH4OH till the smell of NH3. A green ppt is usually obtained implying the presence of metallic cations.
To the small amount of this ppt melt it in minimum volume of HCl and divide it into 3 parts.
6. Ferric cations(Fe3+)
To the sat answer add NH4Cl and add overabundance NH4OH. A reddish darkish ppt indicates ferric cations.
To the small amount of ppt break down it in minimum volume of HCl.
7. Aluminium cations(Al3+)
Take the salt remedy and add NH4Cl and overabundance NH4OH to it. A white gelatinous ppt is definitely observed.