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Both $Be$ and $Al$ become passive in reaction to the cone. nitric acid due to :

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none of the above

the non-reactive nature of the acid

the formation of an oxide layer on the surface of the metals

the non-reactive nature of the meta

answer is C.

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Detailed Solution

Both $Be$ and $Al$ are rendered passive due to the formation of inert, insoluble and impervious oxide layers on their surface.

Hence, the correct option is C.

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