
Science form 3
Authored by Universal Knowledge Learning Studio
Science
9th Grade
NGSS covered
Used 288+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reactivity of metal towards oxygen increases down the reactivity series of metal diagram
True
False
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a vigorous reaction between a more reactive metal such as magnesium and oxygen, a bright flame is observed
True
False
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Magnesium is more reactive towards oxygen compared to
Calcium
Zinc
Sodium
Potassium
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a less vigorous reaction between a less reactive metal such as iron and oxygen, only a glow or slow change in colour is observed
True
False
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If carbon can remove oxygen from a metal oxide, it means carbon is ___________ reactive than the metal.
more
less
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The most reactive metal in the reactivity series of metals is ______________.
Calcium
Potassium
Magnesium
Aluminium
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
Tags
NGSS.HS-PS1-2
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