

MCQOPTIONS
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1. |
\[CaC{{l}_{2}}\] is preferred over \[NaCl\] for clearing ice on roads particularly in very cold countries. This is because: |
A. | \[CaC{{l}_{2}}\] is less soluble in \[{{H}_{2}}O\] than \[NaCl\] |
B. | \[CaC{{l}_{2}}\] is hygroscopic but \[NaCl\] is not |
C. | Eutectic mixture of \[CaC{{l}_{2}}/{{H}_{2}}O\] freezes at \[-55{}^\circ C\] while that of \[NaCl/{{H}_{2}}O\] freezes at \[-18{}^\circ C\] |
D. | \[NaCl\] makes the road slipperty but \[CaC{{l}_{2}}\] does not |
Answer» D. \[NaCl\] makes the road slipperty but \[CaC{{l}_{2}}\] does not | |