Practice Relative Lowering of Vapour Pressure - 1.3.1 | 1. Solutions | CBSE Grade 12 Chemistry Part 1
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Practice Questions

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Question 1

Easy

Define a solution.

💡 Hint: Think about mixtures in everyday life.

Question 2

Easy

What does Raoult's Law state?

💡 Hint: Recall the formula involving p and x.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is Raoult’s Law?

  • It states that the vapour pressure is constant.
  • It relates vapour pressure to the mole fraction.
  • It applies only to ideal gases.

💡 Hint: Remember the connection between pressure and concentration.

Question 2

True or False: Colligative properties depend on the chemical identity of solute.

  • True
  • False

💡 Hint: Think about freezing point depression or boiling point elevation.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If a solution's vapour pressure decreases from 1.0 atm to 0.8 atm upon adding a non-volatile solute, calculate the mole fraction of the solute in the solution.

💡 Hint: Consider how to calculate mole fractions.

Question 2

Determine how the boiling point elevation changes if the concentration of the solute doubles. Explain mathematically.

💡 Hint: Review the relationship between boiling point and colligative properties.

Challenge and get performance evaluation