Question

toothpastes are alkaline. give reason​

Answer 1

Answer:

Toothpastes often contain weak alkalis in order to neutralize acids in the mouth. The pH of soil is a very important consideration for farmers. Some plants grow well in acidic soil, while some would grow better in neutral or alkaline soil.Since toothpastes are made from such substances or chemicals which are acidic in nature . That's why toothpastes are alksline .

Explanation:

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Answer 2

Answer:

The bacteria present in our mouth can change sugary food into acids. If the acid stays in our mouth for a long time, it attacks our teeth. This causes tooth decay. Toothpastes often contain weak alkaline in order to neutralize acids in the mouth.