Consider the molecular substances I₂, H₂O, and C₈H₁₈. Which of them is/are soluble in CCl₄? A)Only I ₂ B)Only H ₂O C)Only C ₈H ₁₈ D)I ₂ and C ₈H ₁₈ E)H ₂O and C ₈H ₁₈

Question

Quizplus · Accepted Answer

The solubility of molecular substances in polar solvents like CCl₄ is primarily determined by their polarity. The more polar the substance, the more soluble it is in polar solvents. Looking at the three molecular substances provided, C₈H₁₈ is the most polar due to the presence of both the polar C-S and C-H bonds. This substance is therefore soluble in CCl₄. I₂ also contains polar C-S bonds, making it somewhat polar and soluble in CCl₄. H₂O, on the other hand, has polar O-H bonds but is otherwise nonpolar, making it insoluble in CCl₄. Therefore, the correct choice is D, I ₂ and C ₈H ₁₈.

Consider the Molecular Substances I2, H2O, and C8H18

Consider the Molecular Substances I₂, H₂O, and C₈H₁₈