A) \[\text{CaC}{{\text{l}}_{2}}\]dissolves in it
B) it is not good dehydrating agent
C) it forms as solid\[\text{CaC}{{\text{l}}_{\text{2}}}\text{.4C}{{\text{H}}_{\text{3}}}\text{OH}\]
D) it reacts with \[\text{C}{{\text{H}}_{\text{3}}}\text{OH}\]
Correct Answer: C
Solution :
Methanol cannot dried with anhydrous \[\text{CaC}{{\text{l}}_{\text{2}}}\]because it forms a solid\[\text{CaC}{{\text{l}}_{\text{2}}}\text{.4C}{{\text{H}}_{\text{3}}}\text{OH}\] (addition compound) with it.
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