13) Which one of the following substances is more likely to dissolve in benzene

Question

13) Which one of the following substances is more likely to dissolve in benzene (C6H6)? A) HBr B) NaCI C) CCl4 D) CH3CH20H E) NH3 gas liquid and gas solid and liquid -solid Heat added ( 14) The heating curve shown was generated by measuring the heat flow and temperature for a solid as it was heated. The slope of the segment corresponds to the heat capacity of the liquid of the substance A) AB B) BC C) CD D) DE E) EF 15). The heat flow into the sample in the segment will yield the value of the dHvap of this substance A) AB B) BC C) CD D) DE E) EF 16) The principal reason for the extremely low solubility of NaCI in benzene (C6H6) is the A) strength of the covalent bond in NaCi B) increased disorder due to mixing of solute and solvent C) strong solvent-solvent interactions D) weak solvation of Na and Ch by CeH6 E) hydrogen bonding in C6H6

Explanation / Answer

Ans 13 : C) CCl4

As a general rule in chemistry , the like substances dissolve in like solvents. That means polar solutes dissolve in polar solvents , and non polar solutes dissolve in non polar solvents.

So here since benzene is non polar and also CCl4 is non polar , so it dissolves best in benzene.

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