Question

What is a solution of iodine in carbon tetrachloride called?

• A. Aqueous solution
• B. Alcoholic solution
• C. Non-aqueous solution
• D. Tincture of iodine

Answer 1

The correct option is A Aqueous solution

The $I_2$ molecules in iodine and the $CC{l}_4$ molecules in carbon tetrachloride are both held together by weak intermolecular bonds. Similar intermolecular bonds can form between $I_2$ and $CC{l}_4$ molecules in a solution of $I_2$ in $CC{l}_4$. $I_2$ therefore readily dissolves in $CC{l}_4$. The molecules in water are held together by hydrogen bonds that are stronger than most intermolecular bonds. No interaction between $I_2$ and $H_{2}O$ molecules is strong enough to compensate for the hydrogen bonds that have to be broken to dissolve iodine in water, so relatively little $I_2$ dissolves in $H_{2}O$ making it aqueous solution