Question

1. What force primarily attracts the potassium ion to the nitrate ion?
     a. London forces
     b. dipole-dipole forces
     c. hydrogen bonds
     d. Covalent bonds
     e. Electrostatic
2. Potassium nitrate is part of which category
     a. ionic
     b. molecular
     c. covalent
     d. metalic

Answer 1

1. e. Electrostatic force of attraction

In Potassium nitrate K⁺ and NO₃^- are charged ions which are attached to each other by electrostatic force of attraction.

Positive and negative attract each other by electrostatic force.

2. a. Potassium nitrate is a part of ionic category.

As you know ions of Potassium nitrate are bonded by electrostatic forces also known as ionic forces.

So, Potassium nitrate is a ionic solid.