Question

3. When a metal reacts with oxygen, the resulting oxide of the metal-
is a neutral oxide
turns blue litmus red
is a basic oxide
is a acidic oxide
Out of the metals, gold, silver, copper and aluminium, the one, that is
ductile, is-
most
4
gold
silver
aluminium
copper
5.
Two of the metals, that cannot be stored either in air, or under water, are-
sodium and magnesium
magnesium and calcium
calcium and potassium
potassium and sodium
Answer the following questions in huiuf​

Answer 1

Answer:

3.     when metals react with oxygen , then the resulting oxides are basic in nature.

for example

2Mg + O2 ===> 2 MgO ( basic)

4.   gold

5.  potassium and sodium

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