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

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

The arrangement of metals in the order of decreasing tendency to lose electrons is called____

Consider the following metallurgical processes in 1. Heating impure metal with CO and distilling the resulting volatile carbonyl boiling point 43^@C and finally decomposing at 150^@ to 200^@C to get the pure metal. II. Heating the sulphide ore in air until a part is converted to oxide and then further heating in the absence of air to let the oxide react with unchanged sulphide. III. Electrolysing the molten electrolyte containing approximately equal amounts of the metal chloride and CaCl_2 to obtain the metal. The processes used for obtaining sodium, nickel and copper are respectively

The names of some metals are given below. Tungsten, Gold, Sodium, Copper, Iron, Magnesium Answer the following questions by selecting the appropriate ones from the list. Which metal with high malleability is used for making ornaments? Which of these metals reacts with cold water? Which of these is a hard metal but corrodes easily?

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.

Sodium is highly reactive metal. The free metal does not occur in nature, but must be prepared from compounds. What happens when sodium metal is heated in free supply of air?

Which metal among magnesium, copper, gold, sodium and aluminium, loses its lus-tre at a faster rate?