How do sodium,magnesium,iron and copper react with oxygen?Arrange these metals in order of decreasing reactivity with the help of these reactions.

How do sodium,magnesium,iron and copper react with water?Arrange these metals in order of decreasing reactivity with the help of these reactions.

Samples of four metals A,B,C and D were taken and added to the following solutions one by one.The results obtained have been tabulated as follows. Use the table above to answer the following questions about metals A,B,C and D. (i)Which is the most reactive metal? (ii)What would you observe if B is added to a solution of copper (II) sulpahate? (iii)Arrange the metals A,B,C and D in the order of decreasing reactivity.

Illustrate how copper metal can give different products on reaction with HNO_3 .

Arrange the following set of compound in order of their decreasing reactivity with an electrophile E^(oplus) . Chlorobenzene, 2, 4 dinitro chlorobenzene, p-nitrochloro benzene.

How does the acidified permanganate solution react with the following? Write the ionic equations for the reactions: (i)KI (ii) iron(II) ion

Given the standard electroge potentials. K^+//K= -2.93V,Ag^+//Ag=0.80V, Mg^(2+)//Mg=-2.37V . Arranges these metals in their decreasing order of oxidising power.