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Write Chemical Equation for the Event.Aluminium Came in Contact with Air.

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प्रश्न

Write chemical equation for the event.
Aluminium came in contact with air.

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उत्तर

Aluminum came in contact with air.
Aluminum is a very reactive metal. The outer surface of the metal is actually covered by a very thin layer of oxide which keeps the metal protected from the air. But when the oxide layer is damaged, aluminum comes in contact with the air. It is easily attacked by air. Then aluminum starts reacting with the oxygen. It will burn as bright white flame to change into aluminum(III) oxide.
Chemical Equation:   

\[4Al + 3 O_2 \to 2A l_2 O_3\]
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अध्याय 8: Metallurgy - Exercise [पृष्ठ १०९]

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बालभारती Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
अध्याय 8 Metallurgy
Exercise | Q 9. a. | पृष्ठ १०९

संबंधित प्रश्न

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  5. Metals like Na, K, Ca and Mg are never found in their free state in nature.

Arrange the following as per the instruction given in the bracket:

Al, K, Mg, Ca (decreasing order of its reactivity)


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