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NEETChemistryp Block Elements (Group 13 & 14)

How does concentrated nitric acid affect aluminum?

Options

  1. AIt dissolves aluminum completely.
  2. BIt has no effect on aluminum.
  3. CIt renders aluminum passive by forming a protective oxide layer.
  4. DIt causes aluminum to become highly reactive.

Correct answer

C. It renders aluminum passive by forming a protective oxide layer.

Step-by-step solution

Concentrated nitric acid renders aluminium passive by forming a protective oxide layer on the surface.

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