Chemistry · Acids, Bases and Salts
दांतों के इनेमल में कैल्शियम हाइड्रोक्सीएपेटाइट होता है। मुंह का pH मान कितने से कम होने पर दांतों का सड़ना (क्षय) शुरू हो जाता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1pH < 5.5✓
- 2pH > 9.2
- 3pH = 7
- 4pH 7 से 9.2 के बीच
सही उत्तर देखें
pH < 5.5
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