Page 3 - 3. LESSON NOTES-(INDICATIRS OF ACIDS & BASES)
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pH-7- Acid (colourless with phenolphthalein) Litmus Paper Test
pH-10- Base (pink with phenolphthalein)
pH < 3.1 Acid (Red in Methyl Orange), pH > 4.4 Basic (Yellow in Methyl Orange)
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