A) K or K\[{{(molality)}^{-1}}\]
B) \[mol\,kg\,{{K}^{-1}}\]or \[{{K}^{-1}}(molality)\]
C) \[kg\,mo{{l}^{-1}}{{K}^{-1}}\]or \[{{K}^{-1}}{{(molality)}^{-1}}\]
D) \[Kmol\,k{{g}^{-1}}\]or \[K(molality)\]
Correct Answer: A
Solution :
The unit of ebullioscopic constant, \[{{\text{K}}_{\text{b}}}=\text{Kkgmo}{{\text{l}}^{-1}}\]or \[\text{K}\,{{\text{(molality)}}^{-1}}.\]
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