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ENTRANCE TEST – 2010 Multiple Questions and Answers.
| 22. | During SN2 reactions, configuration of the alkyl halide molecule: | ||
| A. | Gets inverted | ||
| B. | Remains same | ||
| C. | Depends upon the carbon atom | ||
| D. | Depends upon the electronegativity of halide | ||
| 23. | Grignard reagents are prepared by the reaction of magnesium metal with alkyl halides in the presence of | ||
| A. | Dry Ether | ||
| B. | Sodium Lead Alloy | ||
| C. | Alcohol | ||
| D. | Water | ||
| 24. | Methanol is prepared from carbon monoxide and hydrogen. The catalyst used for this reaction is | ||
| A. | ZnO + CoO2 | ||
| B. | ZnO + CuO | ||
| C. | ZnO + Ag2O | ||
| D. | Cr2O3 + ZnO | ||
| 25. | Dissociation constant of phenol is | ||
| A. | 1.2 x 10-10 | ||
| B. | 1.2 x 1010 | ||
| C. | 1.3 x 1010 | ||
| D. | 1.3 x 10-10 | ||
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