Why vinegar, lemon and onion juice have been used as the invisible ink.
What happens when the paper is kept in the flame? Write chemical euation.
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Squeeze some lemon juice into the bowl and add a few drops of water. ... Wait for the juice to dry so it becomes completely invisible. When you are ready to read your secret message or show it to someone else, heat the paper by holding it close to a light bulb.
Explanation:
supriyagiri:
Can uh write it's reaction. .. Plz
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