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SSC GD 2019 PYQ — Question 31

SSC GD Constable (English) - 18 Feb 2019 Shift 1 • General Awareness • Q31

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What is the neutral value of the pH scale?

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Correct answer: C

Explanation

The correct answer is option 3 i.e. Equal to 7.

  • The neutral value of the pH scale is equal to 7. The pH scale, which was discovered by Soren Sorensen, is a scale used to express the acidity and alkanity of a substance based on the concentration of hydrogen ions in its solution. 
  • A pH scale ranges between 0-14. If pH is less than 7, then solution is acidic, if greater than 7, soution is basic and if equal to 7, then solution is neutral.