Question

Which of the following interaction can be weakened by water?

A.Hydrogen bond

B. Ionic interaction

C. Dipole- Dipole

D. A & B

E. B & C

Answer is D, but I don't know why the answer is D.
Can anyone explain about this? (If you can attach the drawing, then it might be more helpful, but if it's not, it is totally fine)

Answer 1

Hydrogen bonds--is a weak electrostatic attractive force that exists between a hydrogen atom covalently bonded to a very electronegative atom.

Hydrogen bond is depicted as( X-H...Y),where the three dots denote the bond.

Hydrogen bonds are both longer and weaker than covalent bonds between the same atoms.

Example--the bond energy of O-H covalent bond is 110kcal/mol whereas,the energy of hydrogen bonds in water is only about 5kcal/mol.

(2)IONIC interactions--an ionic bond is a chemical bond formed by the electrostatic attraction between positive and negative ions.

Ionic compounds in aqueous solution is the hydration of ions.because water molecules are polar,they are attracted to charged ions.shells of water molecules clusters around both positive and negative ions.as ions become hydrated,the attractive force them is reduced,and the charged species dissolves in the water.