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Metal protected by a layer of its own ox...

Metal protected by a layer of its own oxide is

A

Al

B

Ag

C

Au

D

B

Text Solution

Verified by Experts

The correct Answer is:
A
Al is very reactive towards oxygen gives an oxide layer.
`4Al+3O_(2)rarr 2Al_(2)O_(3)`
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Knowledge Check

  • (A): Concentrated nitric acid makes metal aluminium passive (R): A protective layer of aluminium oxide is formed on the surface

    A
    Both A and R are true, and R is correct explanation of A
    B
    Both A and R are true, and R is not the correct explanation of A
    C
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    D
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  • When 5.0 g of a metal is strongly heated, 9.44g of its oxide is obtained. Then the equivalent mass of the metal is ?

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    C
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  • Generally the nature of the non-metal oxides is

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    C
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