InterviewSolution
Saved Bookmarks
| 1. |
The acid which makes iron passive is _________ (A) Conc. HCl (B) Conc. H2SO4 (C) Conc. HNO3 (D) Conc. |
|
Answer» (C) Conc. HNO3 Here HNO3 is most stronger oxidizing agent. HNO3 reacts on the surface of iron and passiveness the surface. |
|