Class 10 Exam  >  Class 10 Questions  >  A, B, C, D aresamples of liquids havingpH val... Start Learning for Free
A, B, C, D are samples of liquids having  pH values of 14, 7, 1, 5 respectively. Which of these could be that of 1 M NaOH solution?
  • a)
    Sample D
  • b)
    Sample A
  • c)
    Sample B
  • d)
    Sample C
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A, B, C, D aresamples of liquids havingpH values of 14, 7, 1, 5 respec...
NaOH is basic in character and higher the pH, stronger is the base.
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Most Upvoted Answer
A, B, C, D aresamples of liquids havingpH values of 14, 7, 1, 5 respec...
PH Values of Different Samples:

- Sample A: pH 14
- Sample B: pH 7
- Sample C: pH 1
- Sample D: pH 5

Identification of 1 M NaOH Solution:

- NaOH is a strong base and its pH value is above 7.
- Sample A has a pH value of 14, which means it is highly alkaline, and cannot be 1 M NaOH solution.
- Sample B has a pH value of 7, which is neutral, and cannot be 1 M NaOH solution.
- Sample C has a pH value of 1, which is highly acidic, and cannot be 1 M NaOH solution.
- Sample D has a pH value of 5, which is acidic, and cannot be 1 M NaOH solution.

Therefore, the only possible sample that could be 1 M NaOH solution is Sample B, which has a neutral pH value of 7.
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A, B, C, D aresamples of liquids havingpH values of 14, 7, 1, 5 respectively. Which of these could be that of 1 M NaOH solution?a)Sample Db)Sample Ac)Sample Bd)Sample CCorrect answer is option 'B'. Can you explain this answer?
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