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Best Science Quiz on pH test [+30 questions and self-test] - Science Education and Tutorials

Best Science Quiz on pH test [+30 questions and self-test]

Science Quiz based on pH test experiment questions. These questions were developed for school students to understand the importance of the pH test scale. It is purely to check your knowledge on this topic as a self-test. These science quiz questions can be useful for the science fair.

pH test Quiz [self-test]:

```1. Who invented the pH test scale:
(a) Prof. Albert Einstein
(b) Sir. Michael Faraday
(c) Prof. Richard Feynman
(d) Dr.S.P.L Sorenson```
```2. What is the range of the pH test Scale:
(a) 3-4
(b) 1-14
(c)7-14
(d)1-12```
```3. What is the range of values for acidic pH test:
(a) 1-6
(b) 4-8
(c) 3-6
(d) 2-6```
```4. What is the range of values for base pH test:
(a) 11-14
(b) 8-14
(c) 9-14
(d)10-14```
```5. What is the pH test value of pure water sample:
(a) 7
(b) 8
(c) 6
(d) 6.5```
```6. How to calculate pH:
(a) -log[H^+]
(b) log[H^+]
(c) -log[H^+][OH^-]
(d) -{log[H^+]+ log[OH^-]```
```7. What is the pH test value of 1mM of HCl:
(a) 3
(b) 0.003
(c) 0.0003
(d) 0.3```
```8. What is the pH test value of 1mM of NaOH:
(a) 8
(b) 11
(c) 12
(d) 13```
```9. What electrode used in pH measurement:
(a) Platinum
(b) Silver
(c) Gold
(d) Glass```
```10. In the following, choose the correct answer:
(a) pH+pOH=14
(b) pH+pOH=12
(c) pH-pOH=14
(d) pH-pOH=12```
```11. How you collect a water sample for a pH test related science fair Project:
(a) From Home
(b) From the school
(c) From water bodies
(d) None of the above```
```12. In the following, which one is a natural resource:
(a) Electricity
(b) Mobile phone
(c) Internet
(d) Forest```
```13. Best practice, duration of water sample collection for pH experiment:
(a) Alternate day
(b) Two Years Once
(c) Six month Once
(d) Weekly Once```
```14. What is the pH of blood:
(a) 7.1-7.8
(b) 7.3-7.9
(c) 7.2-7.5
(d) None of the above```
```15. What is the pH test scale value for neural samples:
(a) 7
(b) 7.3
(c) 6.9
(d) 6.95```
```16. In which region of pH, 1nM NaOH solution at 25 C:
(a) Acidic Region
(b) Basic Region
(c) Neutral point
(d) None of the above```
```17. In which region of pH test, 1nM HCl solution at 25 C:
(a) Acidic Region
(b) Basic Region
(c) Neutral
(d) None of the above```
```18. In an acid-base titration, what is the pH at endpoint:
(a) Acidic
(b) Basic
(c) Neutral
(d) None of the above```
```19.In the following, which indicator used for strong acid and strong base titration:
(a) Methyl Orange
(b) Methyl Blue
(c) Phenolphthalein
(d) All of them```
```20. If you are not using a pH meter, then how do measure pH?:
(a) Conductometer
(b) Acid base titration
(c) Spectroscopy with sensors
(d) All of them```
```21. What is the pH scale value of our saliva after a meal?
(a) 3.8
(b) 4.8
(c) 5.8
(d) 6.8```
```22. pH test scale value of the sea:
(a) All pH values are the same
(b) The pH values differ
(c) Only less change in pH value
(d) None of the above```
```23.Definition for an acidic solution:
(a) More number of hydroxide ions than hydrogen ions
(b) More number of hydrogen ions than hydroxide ions
(c) Equal number of hydrogen and hydroxide ions
(d) None of the above```
```24.Definition for a basic solution:
(a) More number of hydroxide ions than hydrogen ions
(b) More number of hydrogen ions than hydroxide ions
(c) An equal number of hydrogen and hydroxide ions
(d) None of the above```
```25.pH test scale value for Ethanol:
(a) 6.33
(b) 7.33
(c) 5.33
(d) 4.33```
```26.pH scale value range for Bathing Soap:
(a) 2-8
(b) 11-14
(c) 2-5
(d) 1-3```
```27.In the following field, pH measurement is important:
(a) Chemical Industry
(b) Civil Engineering
(c) Medicine
(d) All of them```
```28.What is the color of the litmus paper test? if the solution is basic:
(a) Blue
(b) Red
(c) Yellow
(d) None of the above```
```29.What is the color of the litmus paper test? if the solution is acid:
(a) Red
(b) Blue
(c) Green
(d) None of the above```
```30.What is the color of the litmus paper test? if the solution is neutral:
(a) Red
(b) Blue
(c) Green
(d) None of the above```

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