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ENTRANCE TEST – 2009 Multiple Questions and Answers.
| 36. | Which metal carbide is formed readily by the direct reaction? | ||
| A. | Rubidium | ||
| B. | Potassium | ||
| C. | Sodium | ||
| D. | Lithium | ||
| 37. | Asbestos is hydrated _________ magnesium silicate. | ||
| A. | Calcium | ||
| B. | Aluminium | ||
| C. | Barium | ||
| D. | Carbon | ||
| 38. | Formula of lead suboxide is: | ||
| A. | Pb2O3 | ||
| B. | Pb2O | ||
| C. | PbO | ||
| D. | Pb3O4 | ||
| 39. | Phosphine can be produced by __________ of phosphorous acid | ||
| A. | Hydration | ||
| B. | Hydrolysis | ||
| C. | Oxidation | ||
| D. | Reduction | ||
| 40. | Which Noble Gas is used in bacterial lamps? | ||
| A. | Xenon | ||
| B. | Radon | ||
| C. | Argon | ||
| D. | Krypton | ||
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