Arragne the below given metals in the decreasing order of their reactivity Mg, Zn, Cu, Ag, Pb, Na, Ca.

List the above metals in the decreasing order of their reactivity with air and thereby losing luster. Magnesium, Sodium, Copper, Gold, Aluminum

5ml water is taken in 3 test tubes.Copper, sodium and magnesium of equal mass are dropped in different test tubes. Test tubes having copper and magnesium are heated: Arrange these metals in the decreasing order of their reactivity.

The direction of electron flow in certain gal-vanic cells are given below. (Symbols are not real) BrarrA , ErarrC , DrarrE , ArarrD : Arrange the metals A,B,C,D and E in the decreasing order of their reactivity.

Some standard electrode potentials at 298K are given below. Cu^(2+)//Cu=0.34 V , Ca^(2+)//Ca=-2.87 V Ag^+//Ag=0.80 V , Na^+//Na= -2.71 .Write the order of metals in the decreasing order of their reducing power with proper justification.

Take equal quantities of dil HCI in four test tubes. Drop Mg, Zn, Fe,Cu in each test tube. Watch carefully: Arrange metals in decreasing order or reactivity.

Carbon is used as a reducing agent to obtain metals from their ores. It is used in the extraction of : Cu, Ag, Cr, Pb,Zn,Fe

Certain samples are given below. 200g H_2 200g He 200g Ca Arrange them in the increasing order of number of molecules. (Hint Atomic mass of H = 1, He = 4, Ca = 40)

The symbols of certain metals are given be-low. Arrange them as they aregiven in the reactivity series. Mg,Pb,Ag,Cu,Zn,Fe,Ail,Sn