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ENTRANCE TEST – 2013 Multiple Questions and Answers.
| 17. | Which one pair has the same oxidation state of ‘Fe’? | ||
| A. | FeSO4 and FeCl3 | ||
| B. | FeCl2 and FeCl3 | ||
| C. | FeSO4 and FeCl2 | ||
| D. | Fe2(SO4)3 and FeSO4 | ||
| 18. | Oxidation state of ‘Fe’ in K3[Fe(CN)6] is: | ||
| A. | +2 | ||
| B. | +3 | ||
| C. | -6 | ||
| D. | -3 | ||
| 19. | The nature of an aqueous solution of ammonia (NH3) is: | ||
| A. | Amphoteric | ||
| B. | Neutral | ||
| C. | Acidic | ||
| D. | Basic | ||
| 20. | Unpolluted rain water has a pH of: | ||
| A. | 4.9 | ||
| B. | 5.6 | ||
| C. | 5.3 | ||
| D. | 7.0 | ||
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