Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

Below which pH can tooth decay start more easily?

Answer and explanation

Correct answer: 5.5 / Five point five

Tooth enamel is mainly mineral-based and can be attacked when the mouth becomes sufficiently acidic. The commonly taught critical pH for enamel is about 5.5; below this value, demineralisation and tooth decay can begin more readily. Thus option A is correct. pH 7 is neutral, while pH 10 and pH 14 are alkaline and do not represent the acidic threshold asked here.

Related tags

ScienceClass10PhTooth-DecayAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.