Question

Which of the following equations best represents methanol being dissolved in water
A. CH3OH(I) —> CH3+(aq) + OH-(aq)
B. CH3OH(I) —> CH3O-(aq) + H+(aq)
C. CH3OH(I) —> CH3OH(aq)

Answer 1

Answer: $CH_3OH(l)\rightarrow CH_3OH(aq)$

Explanation:

According to the concept of “Like dissolves like”, the polar solutes dissolve in polar solvents, and non-polar solutes dissolve in non-polar solvents.

Covalent compounds which are formed by sharing of electrons between non metals, when dissolved in water, forms hydrogen bonding with water if they contain a electronegative atom along with hydrogen. Example: methanol $(CH_3OH)$

Ionic compounds which are made up of cations and anions, when dissolved in water, dissociate into ions. Example: $NaCl$

Thus  equation which best represents methanol being dissolved in water is:

$CH_3OH(l)\rightarrow CH_3OH(aq)$