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ENTRANCE TEST – 2012 Multiple Questions and Answers.
| 32. | Oxidation state of ‘Mn’ in KMnO4, K2MnO4, MnO2 and MnSO4 is in the order: | ||
| A. | +7, +6, +2, +4 | ||
| B. | +6, +7, +2, +4 | ||
| C. | +7, +6, +4, +2 | ||
| D. | +4, +6, +7, +2 | ||
| 33. | Which pair of transition elements shows abnormal electronic configuration? | ||
| A. | Sc and Zn | ||
| B. | Cu and Sc | ||
| C. | Zn and Cu | ||
| D. | Cu and Cr | ||
| 34. | The acid rain water has pH: | ||
| A. | Below 5 | ||
| B. | 7 | ||
| C. | Between 5 and 7 | ||
| D. | Between 7 and 14 | ||
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