NEB Chemistry Practicals — Class 11

Run every practical from the NEB Class 11 chemistry syllabus on a virtual lab bench. Identify apparatus, separate mixtures, titrate acid against base with a real over-shootable endpoint, read flame colours, hunt down anions in unknown salts, prepare and test the classic gases, and determine the water of crystallization in blue vitriol. Each simulation follows the genuine procedure with genuine numbers — record your readings, do the calculation and compare with the true value, exactly as in the board practical exam.

You will learn: doneNaming and handling common laboratory apparatus safely doneChoosing the correct separation technique for a mixture doneAcid-base titration: technique, endpoint and calculation doneQualitative analysis: flame tests and anion tests doneGas preparation, collection and identification doneGravimetric analysis and the mole calculation

play_arrow Start course play_lesson7 lessons schedule~114 min total

Lessons

1 science Lab Apparatus & Safety Tour a virtual lab bench: tap every apparatus to learn its name and use, beat the "find the apparatus" quiz, then spot the four safety hazards hiding on the bench. 3D virtual lab 14 min done 2 filter_alt Separation Techniques Take five different mixtures apart with the right sequence of techniques — filtration, evaporation, sublimation, distillation and paper chromatography — and watch each apparatus work. 3D virtual lab 16 min done 3 colorize Acid-Base Titration Perform a complete titration of unknown NaOH against standard 0.10 M HCl: rinse, fill, pipette, titrate drop by drop to a genuinely over-shootable endpoint, record concordant trials and calculate the concentration. 3D virtual lab 20 min done 4 local_fire_department Flame Tests & Cation Detection Clean a platinum loop in concentrated HCl, dip it into salt samples and read the flame colours — then identify unknown salts from colour alone, watching out for the sodium contamination trap. 3D virtual lab 14 min done 5 biotech Salt Analysis: Anion Tests A white unknown salt sits on your bench. Run the dilute acid test, silver nitrate test, barium chloride test and the brown ring test — read the precipitates and gases like an analyst and name the anion. 3D virtual lab 16 min done 6 bubble_chart Preparation of Gases Set up the classic generators for hydrogen, oxygen and carbon dioxide, collect each gas by the correct method, and confirm its identity with the pop test, glowing splint and lime water. 3D virtual lab 16 min done 7 scale Water of Crystallization Weigh hydrated copper sulphate into a crucible, heat it until the blue turns white, and reweigh repeatedly until constant mass — then calculate x in CuSO₄·xH₂O from your own readings. 3D virtual lab 18 min done