15 questions
The position of a metal in the reactivity series of metals depends on the reactivity of the metal when reacting with ....
Carbon
Hydrogen
Oxygen
Sulphur
Aluminium is more reactive than ....
Calcium and Zinc
Sodium and Gold
Magnesium and Copper
Lead and Iron
Based on the following diagram, what is the function of potassium manganate (VII) crystals in this experiment?
To supply oxygen
To avoid the metals to mix with each other
To release heat
To give out water vapour
Complete the word equation below.
Magnesium + oxygen --> .....
Magnesium
Magnesium oxide
Oxides
Magnesium oxide + water
The diagram shows a setup apparatus for an experiment. What is the aim of the experiment?
To determine the position of carbon in the reactivity series of metals
To determine the position of hydrogen in the reactivity series of metals
To observe the reactivity of metals with carbon dioxide
To observe the reactivity of metals with water
What is the observation when aluminium oxide react with carbon?
The mixture burns vigorously
The mixture glows dimly
The combustion is extinguish
No change
When aluminium oxide react with carbon, there is no change that will occur. What is your inference for this observation?
Carbon cannot remove the oxygen from the aluminium oxide
Carbon is less reactive than aluminium
Aluminium is more reactive than carbon
All of the above
Complete the word equation below.
Zinc oxide + carbon --> ..........
Zinc + carbon
Zinc oxide + carbon
Zinc + carbon dioxide
No change
Based on the diagram, what is the function of anhydrous calcium chloride in the experiment?
To absorb water vapour so that dry hydrogen will be produced
To supply hydrogen gas
To separate the metals
To release heat for combustion
Hydrogen is more reactive than the following metals except .....
Lead
Copper
Aluminium
Mercury
What will happened when lead oxide react with hydrogen?
Lead oxide burns brightly
Yellow powder turns shiny grey
Lead is produced
All of the above
Choose the correct sequence.
.............. , ............ , .........
----------------------------------->
Reactivity towards oxygen increases
Silver , Copper , Tin
Iron , Lead , Mercury
Magnesium , Aluminium , Calcium
Iron , Carbon , Lead
The reactivity series of metals is applied in the ............. of the metals from their ore.
Melting
Extraction
Freezing
Crystalization
Metal oxides that more reactive than carbon can be extracted through ......
Electrolysis
Fractional distillation
Evaporation
Photosynthesis
What are the two non-metals that are include in the reactivity series of metals?
Hydrogen and iron
Oxygen and lead
Tin and carbon
Carbon and hydrogen