Question

why I2 more soluable in CCl4 than water

Answer 1

Answer:

Yes both I2 and CCl4 are nonpolar. But water is a polar solvent and nonpolar iodine does not dissolve in polar water, while it can easily dissolve in nonpolar CCl4 solvent.

Answer 2

Answer:

Iodine is more likely to dissolve in CCl4(ℓ). I2(s) and CCl4(ℓ) are both non- polar molecular compounds, whereas water is a polar molecular compound. There are no significant attractions between the non-polar I2 molecules and polar water molecules that would cause molecules of I2(s) to separate.

Iodine is held together by covalent bonds and dissolves in solvents that unlike water are not held together by hydrogen bonding. Carbon tetrachloride molecules are not so tightly held together.