| ★ |  Which PH value is closest to that of human saliva ? | RRB NTPC/GROUP -D/ALP | PHs values | saliva | | GK Brainway @gkbrainway081 | 24 | India | |
| 5 |  Acidity and Basicity - Concept + PYQs | NEET 2026 | Organic Chemistry | Diksha Ma’am | Sankalp NEET Vedantu @vedantusankalpneet | — | India | 84 |
| 19 |  Lithium - serum concentration: Adult Lab Values for Nursing Students | @LevelUpRN | | — | Estados Unidos | 83 |
| 20 |  You'll Never Guess How Easy It Is to Neutralize Alkaline Water #ChemEd #ScienceDemo | Tommy Technetium @tommytechnetium | — | Estados Unidos | 82 |
| 3 |  Is your water acidic or alkaline? Testing 6 popular brands 🧪🌈 | Tommy Technetium @tommytechnetium | 28.8K | Estados Unidos | 84 |
| 8 |  Études des courbes de variation pH : Acide Fort et Base Faible, Acide Faible et Base Forte. | TelesphoreAcademy @telesphoreacademy | 9.0K | Francia | 83 |
| 13 |  ABG Basics (Part 2): How to Interpret an ABG | Nurse Well Versed @nursewellversed | 1.8K | Estados Unidos | 83 |
| 9 |  Pediatric Lab Values of Note for Nursing Students | @LevelUpRN | | 1.2K | Estados Unidos | 83 |
| 18 |  PH Scale in Car Detailing Explained (Choose the Right Chemicals) | Erick Ortiz @the.erickortiz | 1.2K | — | 83 |
| 2 |  Inquiry Lab Acid and Bases | Kesler Science @chrisjkesler | 922 | — | 84 |
| 14 |  👉 PAU Química Madrid Junio 2025 | Ácidos y bases, pH, Ka y disoluciones reguladoras (4A) | | 212 | España | 83 |
| 10 |  Ácidos y Bases en Agua ⚗️ | Química en Acción @quimicaenaccion | 204 | — | 83 |
| 12 |  pH Explicado: Ácido o Alcalino? | Química en Acción @quimicaenaccion | 141 | — | 83 |
| 16 |  TEMA 17. EQUILIBRIO ÁCIDO-BASE | EJERCICIO 16 | QUÍMICA UNIVERSITARIA @quimica-universitaria | 124 | — | 83 |
| 15 |  Good Vibe Healing - Understanding Food, Acidity, Alkalinity, and Net PH | Organic Consumers Association @organicconsumer | 119 | Estados Unidos | 83 |
| 11 |  PH FORMULA 🪄✨ | Secret Enhancements Aesthetic & Skin Clinic @secretenhancements | 90 | — | 83 |
| 7 |  Medidor de pH 6 en 1 | Hidroponía Ecuador @hidroponiaecuador | 58 | Ecuador | 83 |
| 1 |  Measure pH, Lactate, Nitrate, or Nitrite in Just 30 Microliters (Ideal for Saliva Research) | Fundación Fisabio @fundacionfisabio | 36 | España | 85 |
| 17 |  Color Clues in a Cup A Home pH Detective | FunLab: Science at Home @funlabscienceathome | 18 | Estados Unidos | 83 |
| 6 |  10 Strong Acids You Must Know | Chemistry Basics Explained in 40 Seconds #quiz | RSDDQuizAndLearn @rsddquizandlearn | 9 | India | 83 |
| 4 |  Nature’s pH Palette in a Kitchen Lab | Finance @scienceexperiment-abc | 2 | — | 84 |