Physical Science Part 2

Which of the following is NOT correct about intermolecular forces?

• It is the force between two or more molecules

• It is the force between two or more atoms in a molecule

• It is responsible for the properties of substances

• It explains why a substance is solid, liquid or gas in room temperature.

It is defined as the fluid's resistance to flow.

• Boiling point

• Surface tension

• Solubility

• Viscosity

What is the phase of a substance with strong IMFA at room temperature?

• gas

• liquid

• solid

• solid or liquid

Melting point is the temperature at which a

• solid turns liquid

• liquid turns gas

• gas turns solid

• liquid turns solid

How would you describe the surface tension of a molecule having a weak IMFA?

• average surface tension

• higher surface tension

• lower surface tension

• cannot be determined

Among the choices, which of the following will have the weakest IMFA?

• H₂O

• NaCl

• CH₄

• HCl

What is the most abundant organic molecules in nature?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acid

What is the highest form of energy reserve and long-term energy storage?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acid

Which of the following is composed of hydrogen (H), carbon (C), oxygen (O), nitrogen(N) and sometimes sulfur (S)?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acid

Bacon grease, butter and cheese are examples of what type of lipid?

• Saturated fats

• Unsaturated fats

• Phospholipids

• Hormones & Steroids