Question

1. Usually, CaCl, is preferred over NaCl for cleaning
snow on roads particulary in very cold countries. This
is because
a. NaCl makes the road slippery but CaCl, does not
b. CaCl, is hygroscopic but NaCl is not
C. CaCl, is less soluble in H2O than NaCl
d. eutectic mixture of CaCl /H,O freezes at -55° C
while that of NaCI/H,Ofreezes at -18° C​

Answer 1

Explanation:

option A is your answer

Answer 2

Answer:

d

Explanation:

it is explained by the colligative property (depression of freezing point)