SCIENCE FORM 2: ACID AND ALKALI

Which of the following is NOT a property of an acid?

• Tastes sour
• Corrosive
• Changes the colour of blue litmus paper to red
• Has a pH value higher than 7

What gas is released when an acid reacts with an reactive metal?

• Oxygen
• Hydrogen
• Helium
• Bromine

Which of the following is NOT a property of an alkali?

• Tastes bitter
• Corrosive
• Changes the colour of blue litmus paper to red
• Has a pH value higher than 7

What type of acid can be found in a car battery?

• Ethanoic acid
• Nitric acid
• Hydrochloric acid
• Sulphuric acid

What type of acid can be found in carbonated drinks?

• Carbonic acid

• Tartaric acid

• Citric acid

Is it acid or alkali when the pH is 4

• Acid

• Alkali

• Neutral

Lemon contains acid or alkali or neutral

• Acid

• Alkali

• Neutral

What is an example of neutral substance

• Distilled water

• Vinegar

• Milk

What is the meaning of the above hazard warning symbol?

• Corrosive

• Explosive

• Radioactive

What colour does red litmus paper turn when added to an alkali?

• Blue

• Red

• Colourless