- Lower pH values indicate higher acidity. - Higher pH values indicate higher basicity (alkalinity). - Pure water has a neutral pH of 7.
Which one of the following is the correct order of pH for the given substances?
Asked in UPSC CDS 1 2023 · Topic: Acid, Base and Salt (The pH Scale and its Significance in Everyday Life)
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Answer: D. Lemon juice < Coffee < Blood < Milk of mag‐ nesia
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