Saved Bookmarks
| 1. |
Statement-1:Extraction of gold from its native ore involves leaching the metal ore with dilute solution of NaCN in presence of air. Statement-2:This is an oxidation reaction and leads to the formation of a soluble complex.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1C. Statement-1 is True, Statement-2 is False.D. Statement-1 is False, Statement-2 is True. |
|
Answer» Correct Answer - A `Au(s)oversetO_2toAu^+(aq.)` `Au^+ + 2CN^(-) (aq.) to [Au(CN)_2]^(-)` soluble complex. |
|