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Subjects
Science State Board
Class 10
Periodic Classifications of elements
Alloys
11.
Alloying and corrosion prevention
Exercise condition:
4
m.
Choose the correct answers:
1.
Select the correct reason for alloying.
To change physical activity.
To change chemical activity.
To change enzymatic activity.
To change communication activity.
2.
Select the correct corrosion prevention method.
Surface molding
Surface cleaning
Surface washing
Surface coating
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