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JAMB Chemistry 2024 Paper
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© africaexams.com
Question : 90
Total: 138
Which of the following represents an order of increasing reactivity?
Au < Cu < Sn < Fe < Ca
Ca < Fe < Sn < Cu < Au
Au < Cu < Fe < Sn < Ca
Ca < Sn < Fe < Cu < Au
Validate
Solution:
The order of reactivity of metals, from most to least reactive, is:
Potassium
: Most reactive and easily forms positive ions
Sodium
: Second most reactive
Lithium
: Third most reactive
Calcium
: Fourth most reactive
Magnesium
: Fifth most reactive
Aluminum
: Sixth most reactive
Zinc
: Seventh most reactive
Iron
: Eighth most reactive
Tin
: Ninth most reactive
Lead
: Tenth most reactive
Hydrogen
: Eleventh most reactive
Copper
: Twelfth most reactive
Silver
: Thirteenth most reactive
Gold
: fourteenth most reactive
Platinum
: Fifteenth most reactive
© africaexams.com
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