पीएच का पूरा नाम लिखकर दैनिक जीवन में उसका महत्व बताइए कि बताइए कि 5.5 कम होने से दांत खराब होना क्योंकि रोज आते हैं
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PH full fom Patantial of hydrogen
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The full name is Potential of Hydrogen
the food that somehow exists in our mouth after eating it take place in chemical reaction and we require base to remove dental caries
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