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Question: Answered & Verified by Expert
In some solutions, the concentration of $\mathrm{H}_3 \mathrm{O}^{+}$ remains constant even when small amounts of strong acid or strong base are added to them. These solutions are known as:
ChemistrySolutionsJEE MainJEE Main 2014 (11 Apr Online)
Options:
  • A
    Ideal solutions
  • B
    Colloidal solutions
  • C
    True solutions
  • D
    Buffer solutions
Solution:
2275 Upvotes Verified Answer
The correct answer is:
Buffer solutions
Solutions which resist the change in the value of $\mathrm{pH}$ when small amount of acid or base is added to them are known as buffers.

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