Question

question 3 what is the strongest type of intermolecular force present in nh3? covalent bonding dipole - dipole hydrogen bonding dispersion question 4 1 pts identify the weakest type of intermolecular forces. hydrogen bonding dipole - dipole forces dispersion forces covalent bonding

Explanation:

For Question 3, in ammonia ($NH_3$), nitrogen is highly electronegative and hydrogen is bonded to it. Hydrogen - bonding is a special type of dipole - dipole interaction and is stronger than regular dipole - dipole and dispersion forces in $NH_3$. Covalent bonding is an intramolecular force, not an intermolecular one.
For Question 4, dispersion forces are the weakest among intermolecular forces. They are present in all molecules due to temporary dipoles. Hydrogen bonding is stronger than dipole - dipole forces which are in turn stronger than dispersion forces. Covalent bonding is intramolecular.

Answer:

Question 3: C. hydrogen bonding
Question 4: C. dispersion forces