Arrange the metals Ca, Al, Mg and Zn in decreasing order of their reactivities:
A. Mg > Ca > Al > Zn
B. Ca > Mg > Al > Zn
C. Mg > Ca > Zn > Al
D. Ca > Mg > Zn > Al
Answer:B
Arrange the metals Ca, Al, Mg and Zn in decreasing order of their reactivities:
A. Mg > Ca > Al > Zn B. Ca > Mg > Al > Zn C. Mg > Ca > Zn > Al D. Ca > Mg > Zn > Al
Explanation: Metals have been arranged