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ENTRANCE TEST – 2010 Multiple Questions and Answers.
| 36. | One mole of any gas at standard temperature and pressure (STP) occupies a volume of | ||
| A. | 20.414 dm3 | ||
| B. | 22.414 dm3 | ||
| C. | 22.414 cm3 | ||
| D. | 23.414 dm3 | ||
| 37. | The relative abundance of the isotopes of the elements can be determined by: | ||
| A. | Mass Spectrometry | ||
| B. | Mass-mole relationship | ||
| C. | Mole-volume relationship | ||
| D. | Mass-volume relationship | ||
| 39. | Sublimation is used to purify | ||
| A. | Ammonium sulphate | ||
| B. | Sodium chloride | ||
| C. | Benzoic acid | ||
| D. | Lead carbonate | ||
| 40. | The purity of a substance can be identified by | ||
| A. | Sublimation | ||
| B. | Filtration | ||
| C. | Chromatography | ||
| D. | Solvent extraction | ||
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