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Q. Adding lemon juice to black …

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Q. Adding lemon juice to black tea is chemical or physical change ?

Posted by Atharv Moyal 4 years ago

CBSE > Class 09 > Science

3 answers

🖤 🖤 3 years, 11 months ago

Chemical change

Anshul Bhola 4 years ago

Chemical change

Gaurav Seth 4 years ago

In this change a new substance is formed, hence it is a Chemical change.

Adding lemon juice changes the acidity of tea.

Tea has polyphenol pigment 7−20% and on adding lemon juice which is acidic, hydrogen ions suppress the ionization of polyphenols and that changes the colour of tea making it lighter.

Therefore, change in the colour of black tea on adding lemon juice is an example of chemical change.

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