Which of the following is the correct order of decreasing activity of the metals Fe, Ca, Al and Na?
A
Fe> Ca> Al> Na
B
Na> Ca> Al> Fe
C
Al> Fe> Na> Ca
D
Ca> Na> Fe>, Al
Verified Correct Answer: B.
Chemical Principles & Mechanism
The order of reactivity of metals is as follows, Potassium > Sodium > Lithium > Calcium > Magnesium > Aluminium > Zinc > Iron > Copper > Silver > Gold.
Source: WAEC / JAMB / NECO Classroom Archive (Record #13594)