GK
ELEMENTS COMPOUNDS SUBSTANCES METALS AND NON METALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Metal oxide
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Metal chloride
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Metal sulphate
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Metal hydroxide
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Detailed explanation-1: -Metal oxides are produced when metals burn in the presence of oxygen. These metal oxides are basic in nature. For example: When magnesium strip is burned in the presence of oxygen, it forms magnesium oxide and when magnesium oxide dissolves in water, it forms magnesium hydroxide.
Detailed explanation-2: -Metals, on being burnt in air, react with the oxygen to form metal oxides.
Detailed explanation-3: -Aluminium on reaction with oxygen, forms Al2O3. This metal oxide shows both acidic as well as basic behaviour. Such metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides.
Detailed explanation-4: -Metals react with oxygen to form metallic oxides. Metallic oxides are basic in nature as they react with water to form metal hydroxides(basic compounds). For example, magnesium reacts with oxygen to form magnesium oxide, 2 Mg + O 2 → 2 MgO .
Detailed explanation-5: -Both metals and non-metals when burnt in oxygen form their oxides.