AIM: – To identify the given inorganic compound for its acidic and basic radical.
APPARATUS:- Chemical Reagent, Test Tube, Test Tube holder, Spatula
PROCEDURE:-
Preliminary Test:-
| Experiment | Observation | Inference |
| Smelled the salt. | No Ammonical smell. | Ammonium absent. |
| Added dilute hydrochloric acid to the original solution. | No Effect. | Lead(II) may be present. |
| Added hydrogen disulphide, hydrochloric acid to the original solution. | No Effect. | Pb(II), Cu(II) , As(III) absent. |
| Added dilute hydrochloric acid, concentrated nitric acid and boiled solution. Then cooled it and added solid ammonium hydroxide. | Gelatinous white precipitate formed. | Al(III) may be present. |
Confirmatory Test:-
| Experiment | Observation | Inference |
| Dissolved the precipitate formed with hydrochloric acid and added drops of blue litmus. Then added ammonium hydroxide till alkaline. | Blue coloured precipitate floated on the surface . | Al(III) confirmed. |
Chemical Equations:-
Ionic equation:-
Al3+(aq) + 3OH–(aq) –> Al(OH)3(s)(white)(adsorb blue colour)
Al3+(aq) + 3HCl(l) –> AlCl3(aq) + 3H2O(aq)
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its very nice.
Can u please provide some videos for this?
Awesome 😎
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Love you ❤ govind bhardwaj
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This class was meant to help students to acquire practical knowledge of different elements