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Q:

निम्नलिखित में से किस पदार्थ का pH मान लगभग 14 है?

  • 1
    रक्त
  • 2
    सोडियम हाइड्रॉक्साइड
  • 3
    मैग्नीशिया का दूध
  • 4
    नींबू का रस
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Answer : 4. "नींबू का रस"
Explanation :

The correct answer is Sodium hydroxide. Sodium hydroxide is considered a strong base as all the available [OH] in NaOH is present in the solution as [OH−] and available to accept protons. Sodium hydroxide is the strongest base because it totally dissociates to form sodium ions and hydroxide ions.

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