
Metallurgy
Authored by Heena Changela
Chemistry
10th Grade
Used 7+ times

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25 questions
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1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
In order to reduce zinc metal from its oxide __________ is used.
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Type you answer:
Name the powders added to lower the melting point of alumina. (Name only. Don't write the formulae)
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
In Bayer's Process impurities like __________ are removed when the ore is reacted with concentrated caustic soda.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mercury,silver,gold are very reactive metals
True
False
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What property defines a metals ability to withstand twisting, bending, stretching, or deformation without breaking.
Hardness
Brittleness
Ductility
Toughness
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the reactivity of metals----------------------------
Zn <Al <Fe <Cu
Al< Fe< Cu <Zn
Al< Fe< Zn <Cu
Cu< Fe< Zn <Al
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two highly reactive metals are
Na and K
Cu and Fe
Ag and Au
Al and Zn
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