S1 Chapter 7 - Acid and Alkali

Sulphuric acid is an acid commonly used in school laboratories.

• True

• False

Acids can be used to remove grease.

• True

• False

We should wash the affected area with alkalis if we spill acids on our skin.

• True

• False

Blue litmus is used for testing acidic solutions.

• True

• False

Acids are commonly used to make industrial chemicals but alkalis are not.

• True

• False

Alkalis have a slippery feel.

• True

• False

Litmus paper can be used to measure the pH value of a substance.

• True

• False

The pH values must be a whole number.

• True

• False

Which of the following is true about acids and bases?

• The lower the pH, the stronger the acid

• the higher the pH, the stronger the acid

• The lower the pH, the more neutral the acid

• The higher the pH, the weaker the base

All bases have a sour taste.

• True

• False