1. Tardigrade
  2. Question
  3. Chemistry
  4. Among the following the number of metals which are rendered passive in the presence of conc. HNO 3. Al, Sn, Pb , Fe , Cr , Zn , Ni , Hg , Cu.

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Q. Among the following the number of metals which are rendered passive in the presence of conc. $HNO _{3}$. $Al, Sn, Pb , Fe , Cr , Zn , Ni , Hg , Cu$.

The p-Block Elements - Part2

Solution:

$Al, Fe, Cr, Ni$ are rendered passive by conc. $HNO _{3}$.