SaitechAI – Fill in the Blanks (20 Conceptual Questions)

Q1. The concentration term defined as “moles of solute per kilogram of solvent” is called ________.

Q2. The concentration term that remains unchanged with temperature is ________.

Q3. In a binary solution, the ratio of moles of a component to the total moles of all components is called its ________.

Q4. The law which states that vapour pressure of a component in an ideal solution is directly proportional to its mole fraction is ________ law.

Q5. The law which relates the partial pressure of a gas to its mole fraction in solution is known as ________ law.

Q6. Solutions that obey Raoult’s law over the entire range of composition are called ________ solutions.

Q7. When A–B interactions are weaker than A–A and B–B interactions, the solution shows ________ deviation from Raoult’s law.

Q8. A constant-boiling mixture that distils without change in composition is called an ________.

Q9. Properties of solutions that depend only on the number of solute particles and not on their nature are called ________ properties.

Q10. The lowering of vapour pressure caused by adding a non-volatile solute is called ________ of vapour pressure.

Q11. The rise in boiling point of a solvent on addition of a non-volatile solute is called ________ in boiling point.

Q12. The decrease in freezing point of a solvent on adding a non-volatile solute is called ________ in freezing point.

Q13. The pressure required to stop the flow of solvent through a semipermeable membrane is known as ________ pressure.

Q14. A membrane that allows only solvent molecules to pass through and not solute particles is called a ________ membrane.

Q15. The factor used to correct colligative properties for association or dissociation of solutes is called the ________ factor.

Q16. When a solute dissociates into ions in solution, the van’t Hoff factor becomes ________ than one.

Q17. When a solute molecules associate to form dimers or polymers in solution, the van’t Hoff factor becomes ________ than one.

Q18. The temperature at which the vapour pressure of a liquid becomes equal to the external pressure is called its ________ point.

Q19. The temperature at which the solid and liquid states of a substance are in equilibrium is called its ________ point.

Q20. The process of forcing solvent from a solution back to pure solvent side by applying pressure greater than osmotic pressure is called ________ osmosis.