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ENTRANCE TEST – 2014 Multiple Questions and Answers.
| 6. | In SO4-2 the oxidation number of Sulphur is | ||
| A. | -8 | ||
| B. | +8 | ||
| C. | -6 | ||
| D. | +6 | ||
| 7. | Coinage metals Cu, Ag, and Au are the least reactive because they have: | ||
| A. | Negative reduction potential | ||
| B. | Positive reduction potential | ||
| C. | Negative oxidation potential | ||
| D. | Positive oxidation potential | ||
| 8. | What will be the pH of a solution of NaOH with a concentration of 10-3 M? | ||
| A. | 3 | ||
| B. | 14 | ||
| C. | 11 | ||
| D. | 17 | ||
| 9. | Radon is _______ emitter and being radioactive is used in ________ treatment in radiotherapy: | ||
| A. | β, cancer | ||
| B. | α, cancer | ||
| C. | α, kidney stone | ||
| D. | β, kidney stone | ||
| 10. | Arrange the following elements according to the trend of ionization energies. (C, N, Ne, B) | ||
| A. | Ne < N < C < B | ||
| B. | B < N < C < Na | ||
| C. | B < C < N < Na | ||
| D. | Ne < B < C < N | ||
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