a)0.1NaCL
b)0.01 M NaCL
c)1M NaCL
d)0.001M NaCL
Option(C) is correct.
Depression in freezing point directly proportional to molarity of solution.So, more conc. of solute more depression in freezing point.So, as we decrese the temp. 0.001M NaCl freezes firstly & 1M NaCl freezes in last.
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