NEET Questions Solved


CaCl2 is preffered over NaCl for clearing ice on roads particularly in very cold countries. This is because:

(a) CaCl2 is less soluble in H2O than NaCl

(b) CaCl2 is hygroscopic but NaCl is not 

(c) Eutectic mixture of CaCl2/H2O freezes at -55°C while that of NaCl/H2O freezes at -18°C

(d) NaCl makes the road slippery but CaCl2 does not

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(c) Due to much lower freezing point of eutectic mixture of CaCl2/H2O.

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