Materials Required

The Procedure

Real Lab Procedure

Reaction with Aluminium metal

• Take a small piece of aluminium metal using a spatula then place it in a clean and dry test tube. 
• Add about 5 mL sodium hydroxide solution which is measured in the measuring cylinder.
• Perform the smell test on the gas liberated by fanning the gas gently towards your nose. (Caution: Never smell chemical substance directly close to your nose)
• Bring moist blue and red litmus papers to the mouth of the test tube when gas is liberating.
• Perform combustion test by bringing a lighted candle near to the mouth of the test tube. (For this experiment the given below procedure should be done again because the Hydrogen gas get out quickly)
• Take some pieces of aluminium metal in a test tube. Add a few drops of NaOH into the test tube using a measuring cylinder.. Heat the test tube using the burner. Bring a lighted candle near the mouth of the test tube.

Reaction with dil. hydrochloric acid

• Take about 2mL dil. hydrochloric acid using a dropper and drop it in measuring cylinder.
• Similarly, take 5 mL of dil. sodium hydroxide solution in another test tube.
• Add dil. HCl (2ml) from measuring cylinder to dil. NaOH contained in test tube.
• Shake the mixture slowly .
• Take about 3mL dil. hydrochloric acid using a dropper and drop it in measuring cylinder.
• Keep on adding the dil. HCl(3ml) from measuring cylinder to dil. NaOH in test tube till the reaction mixture in test tube becomes neutral to litmus paper
• Touch the test tube and feel the temperature after complete addition of acid.

Simulator Procedure

Reaction with aluminium metal

• Drag the spatula to take small piece of aluminium metal from the vessel.
• Drop the aluminium metal into the test tube.
• Drag the measuring cylinder containing 5ml of sodium hydroxide solution.
• Drop the solution into the test tube
• Drag moist red litmus paper to the mouth of the test tube when gas is liberating.
• Drag moist blue litmus paper to the mouth of the test tube.
• Enable the Combustion Test button to continue the experiment.
• Click on the Combustion Test button.
• Click on the burner knob to on the burner.
• Drag the test tube to the top of the burner.
• Drop the test tube to the burner.
• Drag a lighted candle near to the mouth of the test tube.
• Drop the candle near to the mouth of the test tube.

Reaction with dil. Hydrochloric acid

• Drag the dropper to take 2 ml. Dilute Hydrochloric acid from glass stopper bottle. 
• Drop 2ml dilute hydrochloric acid in measuring cylinder.
• Drag the dropper to take 5ml. dilute sodium hydroxide solution.
• Drop 5ml sodium hydroxide solution in the test tube.
• Drag the measuring cylinder containing dilute hydrochloric acid(2ml).
• Drop the measuring cylinder containing hydrochloric acid (2 ml.) into the test tube drop wise.
• Drag the dropper to take dilute hydrochloric acid (3 ml.).
• Drop the dilute hydrochloric acid (3 ml.) into the measuring cylinder.
• Drag the measuring cylinder containing dilute hydrochloric acid(3ml).
• Drop the measuring cylinder containing hydrochloric acid (3 ml.) into the test tube drop wise.
• Drag the red litmus paper.
• Drop the red litums paper into the test tube (show red litmus paper dip into the test tube).
• Drag the blue litmus paper.
• Drop the blue litums paper into the test tube (show blue litmus paper dip into the test tube).
• Show a hand near to the test tube to show the temperature of the test tube.
• Click on the inference to see the inference .

Note: Click on the ‘HELP’ button to see the instructions.

Observations

Reaction with aluminium metal

Reaction with dil. Hydrochloric acid

Precautions

1. Always carry out the test for hydrogen with a very small volume of gas.
2. Handle hydrochloric acid and sodium hydroxide solutions very carefully.
3. Shake the solutions and reaction mixtures carefully without spilling.
4. Care must be taken while performing the combustion test.
5. Don’t touch on the hot surfaces.