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Q.1. What types of substance have pH values less than 7?

Q.2. What types of substance have pH values greater than 7?

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Acidic substances, such as citrus juice, tomato juice, vinegar, coffee, most caffeinated beverages/sodas and energy drinks all have pH values under 7. Basic substances include drain cleaner, laundry detergent, alkaline batteries, baking soda, sugar and many more, all above a pH of 7.
User Gladwin Burboz
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Answer:

  1. Acidic
  2. Alkaline

Step-by-step explanation:

pH is determined by the H+ concentration, lower the value of pH more acidic the substance is. And higher the value of pH, it inclines towards being alkaline I nature.

User ArtK
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