MCQ
Pair of metals which does not dissolve in nitric acid
- ✓$Cr, Al$
- B$Al, Ag$
- C$Ag, Au$
- D$Pt, Hg$
✓
Answer
Correct option: A.
$Cr, Al$
a
chromium and aluminium do not dissolve in concentrated nitric acid because of the formation of a passive form of oxide on the surface.
chromium and aluminium do not dissolve in concentrated nitric acid because of the formation of a passive form of oxide on the surface.
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