Revision Quiz

Gas with lower molecular mass diffuse faster.

• True

• False

Exothermic means produces heat. Which apparatus can be used to measure heat?

• balance

• pipette

• stop watch

• thermometre

Air is an example of element.

• True

• False

Sulfur is an example of element.

• True

• False

Which atom is bigger. Sodium, Na or Chlorine, Cl?

• Sodium, Na

• Chlorine, Cl

Apparatus : Measuring cylinder.

Which unit is correct for this apparatus.

• gram

• sec

• degree celcius

• cm³

mono means one.

Which group on the periodic table would belong to monoatomic gas.

• Group 1

• Group 4

• Group 8

• Group 6

Some compounds have their own chemical name which is not reflected by its formula. What is the name for NH₃ ?

• Nitrogen trihydride

• Nitrate

• Nitride

• Ammonia

Atom with only 3 valence electron will be in which group.

Which example matches the group?

• Period 4

  Group 2

• Group 3

  Period 1

• Period 2

  Group 3

• Group 5

  Period 3

Determine the mass of 1 mole of NaCl?

• 23 + 35.5

• 11+ 17

• 23 + 17

• 11 + 35.5