IGCSE Acids Bases and Salts Revision

Reaction between acid and alkali producing salt and water are called

• Combustion

• Neutralization

• Precipitation

• Decomposition

Tags

NGSS.MS-PS1-5

What is the meaning of the above hazard warning symbol?

• Corrosive

• Explosive

• Toxic

• Radioactive

Which of the following about properties of acid is not true?

• pH less than 7

• Tastes bitter

• Corrosive

• Turns blue litmus paper to red

• Aluminium oxide

• Magnesium hydroxide

• Sodium hydroxide

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Name the ion that responsible to show alkaline properties.

• hydrogen ion

• hydroxide ion

Name the ion that responsible to show acidic properties.

• hydrogen ion

• hydroxide ion

• Sodium sulphate

• Sodium chloride

• Sodium nitrate

The table shows the pH of several solutions. Which solution is the most acidic?

• vinegar

• milk

• water

• bleach

Tags

NGSS.MS-PS1-2

Zn(OH)₂ is an example of a...

• acid

• base

• salt

• water

Phenolphthalein is pink in an aqueous solution having a pH of

• 2

• 7

• 5

• 12