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Science Test Space
Class 8
Acids, bases and salts
Classification, chemical and physical properties
7.
Acids and Bases in our daily life: Choose the correct answer
Question:
4
m.
1
.
Veena went to the market and bought some citrus fruits. Her mother found one that is not a citrus fruit. Identify the fruit from the below.
Mango
Grape
Lemon
Orange
2
.
In nature, the toothpaste we use is a base. What is the reason for this?
It neutralizes the acids in the mouth.
It increases acid content in the mouth.
Bases protect the inner layers of teeth.
Bases are non-reactive with the skin.
None of these
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