Acids and alkalis quiz

Select all the acids:

1. Pure water

2. Soap

3. Lemon juice

4. Cola

5. Bleach

6. Coffee

7. Vinegar

Marks: 4

Which of these pH values would be acidic?

1. 7

2. 10

3. 14

4. 1

Marks: 1

How could you test for an alkali?

1. Use red litmus paper and see if it turns green.

2. Use red litmus paper and see if it turns blue.

3. Use blue litmus paper and see if it turns green.

4. Use blue litmus paper and see if it turns red.

Marks: 1

True or false: the word 'acid' means 'roasting' in Latin?

1. True

2. False

Marks: 1

How would you deal with a spilled acid?

1. Add alkali slowly to neutralise it.

2. Add water slowly to neutralise it.

3. Add alkali quickly to neutralise it.

4. Add water quickly to neutralise it.

Marks: 1

If you put an alkali in your mouth, it would taste...

1. Soapy

2. Sweet

3. Salty

4. Sour

Marks: 1

What is special about Universal Indicator compared to other indicators?

1. You can drink it

2. It works in oil

3. It makes a full rainbow

4. It turns purple in neutral solutions

Marks: 1

Which of these chemicals is neutral?

1. River water

2. Sea water

3. Tap water

4. Distilled water

Marks: 1

What is the pH of pure water?

Marks: 1

What colour does cabbage water turn in alkali?

1. Red/orange

2. Purple/violet

3. Yellow/orange

4. Green/blue

Marks: 1

What is an indicator?

1. A chemical that turns red in acid and blue in alkali.

2. A chemical that changes colour depending on its pH.

3. A chemical with a pH less than 7.

4. A chemical with a pH greater than 7.

Marks: 1

When you have heartburn, why do you take an antacid?

1. To decrease the pH of your stomach.

2. To dilute the acid in your stomach.

3. To dissolve the food in your stomach.

4. To increase the pH of your stomach.

Marks: 1

What is the best kind of tie?

Marks: 1