
Gr.7 Chemistry Quiz
Quiz
•
Chemistry
•
7th Grade
•
Medium

Syeda Suhaila
Used 41+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
_________________ is used as a roofing material.
copper
silver
iron
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical reaction in which oxygen combines with a substance is called _______________.
reduction
Oxidation
metabolism
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The chemical name for rust is ___________ __________.
carbon dioxide
hydrated iron oxide
iron hydroxide
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The steel used for girders is coated in zinc in a process called………..
galvanizing
chromium plating
electroplating
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The surface of bronze develops a thin green film over a long time……..
verdigris
patina
chromium
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Steel can also be protected by covering the surface with……………
chromium
tin
mercury
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When aluminium or zinc is exposed to the air, the metal on its surface reacts with………… .
nitrogen
oxygen
carbon
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