MCQOPTIONS
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| 1. |
A solution of urea \[\left( mol.\text{ }mass\text{ }56g\text{ }mo{{l}^{-1}} \right)\] boils at 100.18°C at the atmospheric pressure. If \[{{K}_{f}}\] and \[{{K}_{b}}\]for water are 1.86 and \[0.512K\text{ }kg\text{ }mo{{l}^{-1}}\] respectively the above solution will freeze at [CBSE PMT 2005] |
| A. | \[\,- 6.54{}^\circ C\] |
| B. | \[6.54{}^\circ C\] |
| C. | \[0.654{}^\circ C\] |
| D. | \[-0.654{}^\circ C\] |
| Answer» E. | |