Which of the following is the correct order of decreasing activity of the metals Fe, Ca, Al and Na?
- Fe> Ca> Al> Na
-
Na> Ca> Al> Fe
- Al> Fe> Na> Ca
- Ca> Na> Fe>, Al
The correct answer is: B
Explanation
The order of reactivity of metals is as follows, Potassium > Sodium > Lithium > Calcium > Magnesium > Aluminium > Zinc > Iron > Copper > Silver > Gold.