Chemistry Quiz

What is the chemical symbol for the element Oxygen?

• O

• Ox

• O2

• O3

Which of the following is a noble gas?

• Hydrogen

• Nitrogen

• Helium

• Oxygen

What is the chemical formula for water?

• H2O

• HO2

• H2O2

• OH2

Which of the following elements is a metal?

• Carbon

• Sulphur

• Iron

• Chlorine

What is the pH value of a neutral solution?

• 0

• 7

• 14

• 1

Which of the following is an example of a chemical change?

• Melting ice

• Boiling water

• Rusting iron

• Breaking glass

What is the atomic number of Carbon?

• 6

• 12

• 14

• 8

Which of the following is a compound?

• Oxygen

• Water

• Gold

• Helium

What is the main gas found in the air we breathe?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen

What is the chemical symbol for Sodium?

• S

• Na

• So

• N