Acid solution in water in Acids, Bases and Salts – Class 10 Science Experiment

Chapter Name: Acids, Bases and Salts

Activity Name: Acid solution in water in Acids, Bases and Salts

Activity Description:

Acid solution in water in Acids, Bases and Salts - Class 10 Science Experiment

In this experiment, the conductivity of various solutions is tested using a simple circuit setup with a bulb. Solutions of glucose, alcohol, hydrochloric acid, and sulfuric acid are prepared separately. Two different colored electrical wires are connected to graphite rods placed in a 100 ml beaker.

The free ends of the wires are connected to a 230 volts AC plug, and a bulb is connected to one of the wires to complete the circuit. Dilute hydrochloric acid, sulfuric acid, glucose, and alcohol solutions are separately poured into the beaker, and the current is switched on.

Required Items:

  1. Graphite rods
  2. Two different colored electrical wires
  3. 100 ml beaker
  4. Bulb
  5. Dilute hydrochloric acid
  6. Dilute sulfuric acid
  7. Glucose solution
  8. Alcohol solution

Step by Step Procedure:

  1. Connect two different colored electrical wires to graphite rods separately.
  2. Place the graphite rods in the 100 ml beaker.
  3. Connect the free ends of the wires to a 230 volts AC plug.
  4. Connect a bulb to one of the wires to complete the circuit.
  5. Pour some dilute hydrochloric acid into the beaker.
  6. Switch on the current and observe the bulb.
  7. Repeat the activity with dilute sulfuric acid, glucose, and alcohol solutions separately.
  8. Observe and note down the results for each solution.

Experiment Observations:

  • The bulb glows when dilute hydrochloric acid and sulfuric acid solutions are used.
  • The bulb does not glow when glucose and alcohol solutions are used.

Precautions:

  1. Take appropriate safety measures while working with electrical equipment and acids.
  2. Handle the electrical wires and plug with care to avoid electric shock.
  3. Use dilute solutions to prevent any hazardous reactions.

Lesson Learnt from Experiment:

The experiment demonstrates that acid solutions (hydrochloric acid and sulfuric acid) conduct electricity and allow the flow of electric current through them. This is indicated by the glowing of the bulb when these acid solutions are used. The presence of ions (in this case, H+ ions) in the acid solutions is responsible for their ability to conduct electricity.

On the other hand, glucose and alcohol solutions do not conduct electricity and do not allow the flow of electric current, as indicated by the bulb not glowing. This is because glucose and alcohol solutions do not contain ions.

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