PH in food refers to the measure of acidity or alkalinity on a scale from 0 to 14, where lower values indicate higher acidity and higher values indicate greater alkalinity. Most foods fall in the acidic range, typically between pH 3 and 7, influencing taste, texture, safety, and preservation. For example, citrus fruits like lemons have a low pH (around 2-3), giving them their tart flavor, while bananas are closer to neutral at pH 5-6. In food processing, maintaining optimal pH levels helps prevent microbial growth, enhances nutrient retention, and improves overall quality.
Table of contents
- Part 1: Create an amazing food PH quiz using AI instantly in OnlineExamMaker
- Part 2: 20 food PH quiz questions & answers
- Part 3: AI Question Generator – Automatically create questions for your next assessment
Part 1: Create an amazing food PH quiz using AI instantly in OnlineExamMaker
The quickest way to assess the food PH knowledge of candidates is using an AI assessment platform like OnlineExamMaker. With OnlineExamMaker AI Question Generator, you are able to input content—like text, documents, or topics—and then automatically generate questions in various formats (multiple-choice, true/false, short answer). Its AI Exam Grader can automatically grade the exam and generate insightful reports after your candidate submit the assessment.
Overview of its key assessment-related features:
● Create up to 10 question types, including multiple-choice, true/false, fill-in-the-blank, matching, short answer, and essay questions.
● Automatically generates detailed reports—individual scores, question report, and group performance.
● Instantly scores objective questions and subjective answers use rubric-based scoring for consistency.
● API and SSO help trainers integrate OnlineExamMaker with Google Classroom, Microsoft Teams, CRM and more.
Automatically generate questions using AI
Part 2: 20 food PH quiz questions & answers
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1. Question: What is the approximate pH of lemon juice?
Options: A) 2-3 B) 5-6 C) 7 D) 8-9
Answer: A) 2-3
Explanation: Lemon juice is highly acidic due to its high citric acid content.
2. Question: What is the approximate pH of vinegar?
Options: A) 2-3 B) 4-5 C) 7 D) 9-10
Answer: A) 2-3
Explanation: Vinegar is acidic because of acetic acid, typically giving it a low pH.
3. Question: What is the approximate pH of cow’s milk?
Options: A) 2-3 B) 6.5-7.5 C) 8-9 D) 10-11
Answer: B) 6.5-7.5
Explanation: Milk is slightly acidic to neutral, influenced by its lactic acid and other components.
4. Question: What is the approximate pH of bananas?
Options: A) 4-5 B) 5-6 C) 7 D) 8-9
Answer: A) 4-5
Explanation: Bananas are acidic due to organic acids like malic and citric acid.
5. Question: What is the approximate pH of apples?
Options: A) 3-4 B) 5-6 C) 7 D) 9-10
Answer: A) 3-4
Explanation: Apples are acidic because of malic acid present in their composition.
6. Question: What is the approximate pH of oranges?
Options: A) 3-4 B) 5-6 C) 7 D) 8-9
Answer: A) 3-4
Explanation: Oranges are acidic due to citric acid, similar to other citrus fruits.
7. Question: What is the approximate pH of tomatoes?
Options: A) 4-5 B) 6-7 C) 8-9 D) 10-11
Answer: A) 4-5
Explanation: Tomatoes are mildly acidic because of acids like citric and malic acid.
8. Question: What is the approximate pH of bread?
Options: A) 5-6 B) 6-7 C) 7 D) 8-9
Answer: A) 5-6
Explanation: Bread is slightly acidic due to fermentation processes during baking.
9. Question: What is the approximate pH of eggs?
Options: A) 7-8 B) 8-9 C) 9-10 D) 7
Answer: D) 7
Explanation: Eggs are nearly neutral, with the egg white having a pH around 7.6-9, but overall balanced.
10. Question: What is the approximate pH of beef meat?
Options: A) 5-6 B) 6-7 C) 7 D) 8-9
Answer: A) 5-6
Explanation: Raw beef is slightly acidic due to natural acids and post-slaughter changes.
11. Question: What is the approximate pH of fish?
Options: A) 6-7 B) 7 C) 8-9 D) 4-5
Answer: A) 6-7
Explanation: Fish is mildly acidic to neutral, depending on the species and freshness.
12. Question: What is the approximate pH of cheese?
Options: A) 4-5 B) 5-6 C) 6-7 D) 7
Answer: C) 6-7
Explanation: Cheese varies but is generally slightly acidic due to lactic acid from fermentation.
13. Question: What is the approximate pH of yogurt?
Options: A) 4-5 B) 5-6 C) 7 D) 8-9
Answer: A) 4-5
Explanation: Yogurt is acidic because of lactic acid produced by bacterial fermentation.
14. Question: What is the approximate pH of honey?
Options: A) 3-4 B) 5-6 C) 7 D) 8-9
Answer: A) 3-4
Explanation: Honey is acidic due to its natural acids like gluconic acid.
15. Question: What is the approximate pH of coffee?
Options: A) 5-6 B) 6-7 C) 7 D) 8-9
Answer: A) 5-6
Explanation: Coffee is acidic because of chlorogenic acids and other compounds.
16. Question: What is the approximate pH of tea?
Options: A) 5-6 B) 6-7 C) 7 D) 8-9
Answer: A) 5-6
Explanation: Tea is mildly acidic due to tannins and other organic acids.
17. Question: What is the approximate pH of carbonated soda?
Options: A) 2-3 B) 4-5 C) 7 D) 8-9
Answer: A) 2-3
Explanation: Carbonated soda is highly acidic due to phosphoric and carbonic acids.
18. Question: What is the approximate pH of beer?
Options: A) 4-5 B) 5-6 C) 7 D) 8-9
Answer: A) 4-5
Explanation: Beer is acidic because of fermentation byproducts like lactic acid.
19. Question: What is the approximate pH of olive oil?
Options: A) 6-7 B) 7 C) 8-9 D) 4-5
Answer: A) 6-7
Explanation: Olive oil is nearly neutral to slightly acidic due to its fatty acid composition.
20. Question: What is the approximate pH of pure water used in food preparation?
Options: A) 6-7 B) 7 C) 8-9 D) 4-5
Answer: B) 7
Explanation: Pure water is neutral with a pH of 7, though it can vary slightly in food contexts.
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Part 3: AI Question Generator – Automatically create questions for your next assessment
Automatically generate questions using AI