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ENTRANCE TEST – 2015 Multiple Questions and Answers.
| 21. | Which one of the following is a powerful electrophile used to attack on the electrons of benzene ring? | ||
| A. | FeCl2 | ||
| B. | FeCl4 – | ||
| C. | Cl+ | ||
| D. | Cl2 | ||
| 22. | Order of reactivity of alkenes with hydrogen halide is: | ||
| A. | HBr > HI > HCl | ||
| B. | HI > HBr > HF | ||
| C. | HF > HI > HCl | ||
| D. | HI > HBr > HCl | ||
| 23. | Which one of the following was used as one of the earliest antiseptic and disinfectant? | ||
| A. | Phenol | ||
| B. | Ether | ||
| C. | Ethanol | ||
| D. | Methanol | ||
| 24. | Which one of the following is NOT able to denature the ethanol? | ||
| A. | Methanol | ||
| B. | Lactic acid | ||
| C. | Pyridine | ||
| D. | Acetone | ||
| 25. | How will you distinguish between methanol and ethanol? | ||
| A. | By Lucas test | ||
| B. | By silver mirror test | ||
| C. | By oxidation | ||
| D. | By Iodoform test | ||
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