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Which of the following solution will have pH close to 1.0 ?
- a)100 ml of M/100 HCl + 100 ml of M/10 NaOH
- b)55 ml of M/10 HCl + 45 ml of M/10 NaOH
- c)10 ml of M/10 HCl + 90 ml of M/10 NaOH
- d)75 ml of M/5 HCl + 25 ml of M/5 NaOH
Correct answer is option 'D'. Can you explain this answer?
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Which of the following solution will have pH close to 1.0 ?a)100 ml of...
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Understanding pH Calculation
To determine which solution has a pH close to 1.0, we need to analyze the concentrations of HCl and NaOH in each option. A pH of 1.0 indicates a highly acidic solution, which corresponds to a high concentration of hydrogen ions (H+).
Acid-Base Neutralization
- HCl (Hydrochloric acid) is a strong acid, fully dissociating in solution.
- NaOH (Sodium hydroxide) is a strong base, also fully dissociating in solution.
When mixed, these two will undergo neutralization. The remaining concentration of H+ ions will determine the final pH.
Option Analysis
1. Option A: 100 ml of M/100 HCl + 100 ml of M/10 NaOH
- M/100 HCl: 0.01 M concentration
- M/10 NaOH: 0.1 M concentration
- NaOH will neutralize HCl, resulting in a less acidic solution.
2. Option B: 55 ml of M/10 HCl + 45 ml of M/10 NaOH
- M/10 HCl: 0.1 M concentration
- M/10 NaOH: 0.1 M concentration
- These will neutralize each other, leading to a pH around 7.
3. Option C: 10 ml of M/10 HCl + 90 ml of M/10 NaOH
- M/10 HCl: 0.1 M concentration
- M/10 NaOH: 0.1 M concentration
- NaOH will significantly neutralize HCl, resulting in a higher pH.
4. Option D: 75 ml of M/5 HCl + 25 ml of M/5 NaOH
- M/5 HCl: 0.2 M concentration
- M/5 NaOH: 0.2 M concentration
- The excess HCl will ensure a highly acidic solution, keeping the pH low.
Conclusion
- Final pH of Option D: Since it contains more HCl than NaOH, the solution remains acidic with a pH close to 1.0. Other options lead to neutralization, resulting in higher pH values. Thus, option D is correct.
To determine which solution has a pH close to 1.0, we need to analyze the concentrations of HCl and NaOH in each option. A pH of 1.0 indicates a highly acidic solution, which corresponds to a high concentration of hydrogen ions (H+).
Acid-Base Neutralization
- HCl (Hydrochloric acid) is a strong acid, fully dissociating in solution.
- NaOH (Sodium hydroxide) is a strong base, also fully dissociating in solution.
When mixed, these two will undergo neutralization. The remaining concentration of H+ ions will determine the final pH.
Option Analysis
1. Option A: 100 ml of M/100 HCl + 100 ml of M/10 NaOH
- M/100 HCl: 0.01 M concentration
- M/10 NaOH: 0.1 M concentration
- NaOH will neutralize HCl, resulting in a less acidic solution.
2. Option B: 55 ml of M/10 HCl + 45 ml of M/10 NaOH
- M/10 HCl: 0.1 M concentration
- M/10 NaOH: 0.1 M concentration
- These will neutralize each other, leading to a pH around 7.
3. Option C: 10 ml of M/10 HCl + 90 ml of M/10 NaOH
- M/10 HCl: 0.1 M concentration
- M/10 NaOH: 0.1 M concentration
- NaOH will significantly neutralize HCl, resulting in a higher pH.
4. Option D: 75 ml of M/5 HCl + 25 ml of M/5 NaOH
- M/5 HCl: 0.2 M concentration
- M/5 NaOH: 0.2 M concentration
- The excess HCl will ensure a highly acidic solution, keeping the pH low.
Conclusion
- Final pH of Option D: Since it contains more HCl than NaOH, the solution remains acidic with a pH close to 1.0. Other options lead to neutralization, resulting in higher pH values. Thus, option D is correct.
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Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer?.
Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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ample number of questions to practice Which of the following solution will have pH close to 1.0 ?a)100 ml of M/100 HCl + 100 ml of M/10 NaOHb)55 ml of M/10 HCl + 45 ml of M/10 NaOHc)10 ml of M/10 HCl + 90 ml of M/10 NaOHd)75 ml of M/5 HCl + 25 ml of M/5 NaOHCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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