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Question

To protect decay, one is advised to brush the teeth regularly. The ingredient of the paste which check the tooth decay is:

A
acidic
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B
basic
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C
neutral
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D
corrosive
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Solution

The correct option is C basic
Tooth decay occurs due to decrease in pH inside the mouth, i.e due to increased acidity. Toothpaste contains mildly basic ingredients that neutralize the acids in the mouth and this prevents degradation of enamel

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