This document provides the procedure for an experiment to classify common household substances as acidic, basic, or neutral using universal indicator. Students will test various substances like vinegar, lemon juice, baking powder, and record the color and pH level. The goal is to determine if the substances are acidic, basic, or neutral based on the results.

1. TESTING HOUSEHOLD
SUBSTANCES
Y E A R 1 0 – A C I D S A N D I N D I C AT O R S
G.Ajetrao

2. AIM
Aim: To classify common
household substances as
acidic, basic or neutral.
• Hypothesis:
• Write a appropriate
hypothesis

3. EQUIPMENT
• Spotting plate
• Universal indicator
• Universal indicator chart
• Common household substances
a. Coke/fizzy drink
b. Dishwashing detergent
c. Baking powder
d. Water
e. Vinegar
f. Lemon juice
g. Tea
h. Alka-Seltzer tablets
i. Sugar solution
j. Salt solution
k. Soap/Handwash
l. Toothpaste
m. Milk

4. METHOD
1. Put 3 drops of vinegar into the well of the spotting
plate.
2. Add 1 drop of universal indicator to the vinegar.
3. Observe the colour of the solution.
4. Compare the colour of the solution to the colour on the
universal colour chart.
5. Record the colour and the pH in the result table.
6. Repeat steps 1 – 5 with other household substances
7. Take a photo of the result and upload it to google doc

5. RESULT
Household Substance
Coke/fizzy drink
Dishwashing detergent
Milk
Baking powder
Water
Vinegar
Lemon juice
Tea
Alka-Seltzer tablets
Sugar solution
Salt solution
Soap/Handwash
Colour of the solution
pH of the Solution

6. DISCUSSION
Write an appropriate discussion.

7. CONCLUSION
• Write an appropriate conclusion.