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Chapter-4 - 11th - Liquids and Solids Preparation Multiple Questions and Answers.
| 36. | The number of formula units in 29.25g of common salt | ||
| A. | 6.022 x 1023 | ||
| B. | 3.01 x 1023 | ||
| C. | 2 x NA | ||
| D. | 4 x 6.022 x 1023 | ||
| 37. | During which process empty spaces between particles become minimum? | ||
| A. | ionization | ||
| B. | condensation | ||
| C. | fusion | ||
| D. | evaporation | ||
| 39. | Which one of the following has the highest volatility | ||
| A. | Diethyl ether | ||
| B. | Ethyl alcohol | ||
| C. | Water | ||
| D. | Ethylene glycol | ||
| 40. | Molar heat of vaporization of water is | ||
| A. | 40.7 KJ/mole | ||
| B. | 40.7 J/mole | ||
| C. | 40.7 cal/mole | ||
| D. | 40.7 Kcal/mole | ||
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