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The World of Acidity! Trivia Quiz

The whole world is full of thousands of compounds which are acids, bases or neutral. This quiz will test your knowledge about them.

A multiple-choice quiz by TANU. Estimated time: 3 mins.

Author
TANU

Time
3 mins

Type
Multiple Choice

Quiz #
247,854

Updated
Oct 12 22

# Qns
10

Difficulty
Average

Avg Score
6 / 10

Plays
6757

Awards
Top 35% Quiz

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Which of the following is a base? Hint

Vinegar

Common salt

Tomato juice

Caustic soda

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Question 2 of 10

2. What will the colour of litmus paper turn into when dipped in orange juice? Hint

Red

Purple

Blue

Orange

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Question 3 of 10

3. Generally, how does a base taste? Hint

Salty

Bitter

Spicy

Sweet

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Question 4 of 10

4. Which of the following is NOT an indicator? Hint

Methyl Red

Methyl Orange

Phenolphthalein

Demathalin

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Question 5 of 10

5. What is the pH of pure water considered to be? Hint

Neutral

Acidic

Basic

None of the above

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Question 6 of 10

6. Which of the following acids is used for cleaning cement floors? Hint

Hydrochloric acid

Nitric acid

Sulphuric acid

Tartaric acid

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Question 7 of 10

7. Which of the following bases is involved in the making of soap? Hint

Caustic soda

Ammonia

Baking soda

Washing soda

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Question 8 of 10

8. Which of the following is neutral in water? Hint

Diethyl amine

Iodine

Potassium chloride

Baking soda

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Question 9 of 10

9. What is the nature of common salt? Hint

Acidic

Neutral

Basic

None of the above

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Question 10 of 10

10. In a pH strip, if the range is from 8 to 11, what colour does it show? Hint

Orange- red

Blue- Violet

Green

Grey- black

Quiz Answer Key and Fun Facts

1. Which of the following is a base?

Answer: Caustic soda

Vinegar, which is acetic acid, and tomato juice are acidic. Common salt is neutral. The fact that caustic soda is basic can be checked by a pH indicator.

2. What will the colour of litmus paper turn into when dipped in orange juice?

Answer: Red

Blue litmus paper turns red on dipping into acids whereas red litmus paper remains red. Orange juice contains citric acid and hence it is acidic. Acids are generally sour to taste. But don' t try to taste ones like hydrochloric acid. Now you know why your orange tastes sour!

3. Generally, how does a base taste?

Answer: Bitter

Bases are bitter to taste and soapy to touch. This can be seen with soap water. Better not to taste a base!

4. Which of the following is NOT an indicator?

Answer: Demathalin

Methyl red turns red and yellow; phenolphthalein, colourless and pink; and methyl orange, reddish orange and yellow in acids and bases respectively.
There is nothing like demathalin. I created the name myself!

5. What is the pH of pure water considered to be?

Answer: Neutral

Though naturally occurring water is usually slightly basic (about 7.2 on the pH scale) due to dissolved minerals, pure water is (by definition) neutral.

6. Which of the following acids is used for cleaning cement floors?

Answer: Hydrochloric acid

Hydrochloric, sulphuric and nitric acid are very strong acids. Hence, don't play with them!. Hydrochloric acid is also present in the stomach for aiding our digestion and killing bacteria in our stomach.

7. Which of the following bases is involved in the making of soap?

Answer: Caustic soda

Caustic soda is made to react with oil and the resulting product is used to make soap along with glycerin.

8. Which of the following is neutral in water?

Answer: Potassium chloride

Iodine is an element. Baking soda is an inorganic compound. Diethyl amine is an organic compound which is a base.

9. What is the nature of common salt?

Answer: Neutral

All salts formed from strong acids and bases are generally neutral.

10. In a pH strip, if the range is from 8 to 11, what colour does it show?

Answer: Blue- Violet

If the solution is acidic, basic or neutral the strip will turn orange- red, blue- violet and green respectively.

Source: Author TANU

This quiz was reviewed by FunTrivia editor crisw before going online.
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