4NA Sci(Chem) Topics
Authored by Jiezhu, Carolyn Khoo
Chemistry
8th - 12th Grade
Used 14+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which statement is true of an alloy?
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is formed by the reaction of sodium with cold water?
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which metal does not react with cold water but does react on heating with steam to produce hydrogen gas?
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In the extraction of iron from haematite, which substance removes impurities from the blast furnace?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
List the metals in order of increasing reactivity.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
silica (sand) SiO2 is a/an __________ oxide.
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Rust forms most readily around an iron object if it is surrounded by __________.
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