Question

aluminium, copper, iron, lead, magnesium, zinc and sodium.
Hold any of the samples taken above with a pair of tongs and try burning over a flame. Repeat with the other metal samples. Collect the product if formed. Let the products and the metal surface cool down.
Which metals burn easily?
What flame colour did you observe when the metal burnt?
How does the metal surface appear after burning?
Arrange the metals in the decreasing order of their reactivity towards oxygen.
Are the products soluble in water?

Answer 1

magnesium burns easily..

yellow

the metal completely becomes powder

Sodium, aluminum, zinc, iron, lead, copper

Answer 2

Answer:

Magnesium burns easily.

It burns in O2 with a dazzling white flame.

The magnesium metals becomes magnesium oxide (MgO), which is a silvery white powder.

Na>Mg>Al>Zn>Fe>Pb>Cu

All metal oxides are generally insoluble in water. Exceptions include sodium oxide, barium oxide, pottasium oxide, strontium oxide etc.

In this case, all the oxides are insoluble in water except sodium.

Hope its clear...

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