Question

Which of the following statements are true?

1. Glass is mostly silicon dioxide and so when a long narrow glass tube is placed into water, the water molecules form adhesive forces with the oxygen atoms in the molecules of the glass

2. The Shape of the meniscus seen when water is poured into a glass container is due to cohesive forms being greater than the adhesive forced being experienced.

3. When a glass tube is placed into a dish of mercury, the cohesive forces in mercury will be stronger than the adhesive forces between the mercury and glass

4. heat of vaporization decreases when the strength of the intermolecular forces increases

5. when placed in water, silver chloride completely dissolves due to ion-dipole interactions

Answer 1

The only correct statement is : (2.) The Shape of the meniscus seen when water is poured into a glass container is due to cohesive forms being greater than the adhesive forced being experienced.

Explanation

Statement 1 - Adhesive forces is between molecules of water (H₂O) and molecules of glass (SiO₂)

Statement 3 - The adhesive forces between molecules of mercury and molecules of glass are stronger than cohesive forces.

Statement 4 - When intermolecular forces increase, more energy is required to separate the atoms which means higher heat of vaporization.

Statement 5 - Silver chloride is an insoluble salt.