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How do you prepare your own indicator using beetroot? Explain.

Aniket Singh , 4 Months ago
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Askiitians Tutor Team

Last Activity: 4 Months ago

To prepare your own pH indicator using beetroot, follow these steps:

Materials Needed
Fresh beetroot
Water
Knife
Grater or blender
Strainer or cheesecloth
Container
Instructions
Preparation of Beetroot:

Wash the beetroot thoroughly to remove any dirt.
Peel the beetroot to get rid of the skin.
Grate or Blend:

Use a grater to finely shred the beetroot. If you prefer, you can also cut the beetroot into small pieces and blend them to create a puree.
Extract the Juice:

Place the shredded or blended beetroot into a strainer or cheesecloth over a container to collect the juice. Squeeze or press the beetroot to extract as much juice as possible.
Filter the Juice (Optional):

If you want a clearer indicator solution, you can filter the juice again to remove any remaining solid particles.
How it Works
Beetroot juice contains betalains, which are pigments responsible for the red color. Betalains can act as a pH indicator because their color changes with the pH of the solution they are in.

Acidic Solutions: In acidic environments (pH < 7), the juice will generally maintain a reddish color.
Basic Solutions: In basic environments (pH > 7), the juice may shift to a more violet or purple hue.
Usage
You can use the beetroot juice to test the pH of various solutions. Simply add a few drops of the beetroot juice to the solution you want to test and observe any color change. This can give you a rough estimate of the pH level based on the color change.

Example Test
Acid Test: Add a few drops of beetroot juice to a solution of vinegar. The solution should remain red or slightly pinkish.
Base Test: Add a few drops of beetroot juice to a solution of baking soda mixed with water. The solution should change to a more violet or purple color.
This simple beetroot indicator can be a fun and educational way to explore the concept of pH and acidity/basicity in solutions.

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