Start learning →

Indian Navy 10+2 B.Tech Cadet Ideal and Non-Ideal Solutions — practice questions

Explore 30 free Ideal and Non-Ideal Solutions questions in Indian Navy 10+2 B.Tech Cadet Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

Practise Ideal and Non-Ideal Solutions with Quill →

Ideal and Non-Ideal Solutions questions and exercises with answers

Showing questions 1–30 of 30.

The van't Hoff factor $i$ for a $0.01$ M aqueous solution of NaCl, assuming complete dissociation, is approximately:Read the answer and worked solution →What is the molarity of a solution containing 5.85 g of NaCl (M.W. = 58.5) in 250 mL of solution?Read the answer and worked solution →For 0.5 m solutions of NaCl, KCl, and BaCl2, which gives largest ΔT_f?Read the answer and worked solution →Molarity M is defined as:Read the answer and worked solution →For salt CaCl₂ (assume full dissociation), i =Read the answer and worked solution →HENRY'S LAW states that at constant temperature:Read the answer and worked solution →Match each scientist to their contributionRead the answer and worked solution →Ionic or covalent?Read the answer and worked solution →Complete the driver of bond formationRead the answer and worked solution →Single, double and triple bondsRead the answer and worked solution →True or false: Lewis structuresRead the answer and worked solution →Complete the definition of resonanceRead the answer and worked solution →Tap every bond parameter the chapter namesRead the answer and worked solution →True or false: ionic solidsRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Bonded pair or lone pair?Read the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Order the reasoning: why resonance is neededRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →True or false: what bond parameters affectRead the answer and worked solution →Bond parameters in useRead the answer and worked solution →Which parameter answers this?Read the answer and worked solution →True or false: resonanceRead the answer and worked solution →Order the steps: draw a Lewis structureRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Assertion and reason: structureRead the answer and worked solution →Flip and pair: parameter with what it measuresRead the answer and worked solution →

Worked practice questions

The van't Hoff factor $i$ for a $0.01$ M aqueous solution of NaCl, assuming complete dissociation, is approximately:

  1. $1$
  2. $0.5$
  3. $2$
  4. $3$
Show answer and solution

Correct answer: C. $2$

NaCl dissociates in water: $\mathrm{NaCl} \rightarrow \mathrm{Na^+} + \mathrm{Cl^-}$. One formula unit produces two particles in solution. Van't Hoff factor $i = \dfrac{\text{actual moles of particles}}{\text{moles of solute formula units}}$. For complete dissociation of NaCl, $i = 2$. In reality, ion pairing slightly reduces $i$ below the theoretical value, especially at higher concentrations. At dilute $0.01$ M the assumption of complete dissociation is reasonable, and the experimental $i$ is close to $1.9$. The question asks for the theoretical value assuming complete dissociation, so 2 is the cleanest answer. Compare with $\mathrm{CaCl_2}$: dissociates into 3 ions, so $i = 3$ (option D) — common trap.

Open this question →

What is the molarity of a solution containing 5.85 g of NaCl (M.W. = 58.5) in 250 mL of solution?

  1. 0.2 M
  2. 0.1 M
  3. 0.4 M
  4. 1 M
Show answer and solution

Correct answer: C. 0.4 M

Moles of NaCl = 5.85/58.5 = 0.1 mol. Volume = 0.25 L. Molarity = 0.1/0.25 = 0.4 M.

Open this question →

For 0.5 m solutions of NaCl, KCl, and BaCl2, which gives largest ΔT_f?

  1. NaCl (i=2)
  2. KCl (i=2)
  3. All equal
  4. BaCl2 (i=3)
Show answer and solution

Correct answer: D. BaCl2 (i=3)

ΔT_f ∝ i × m. BaCl2 has highest i = 3, so largest ΔT_f. ΔT_f = 1.86 × 3 × 0.5 = 2.79 K for BaCl2; 1.86 K for NaCl/KCl.

Open this question →

How to practise

  1. Choose a Ideal and Non-Ideal Solutions question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Chemistry topics

Alcohols Phenols EthersOrganic ChemistryAlkenesPolymersChemical EquilibriumAtoms and MoleculesStates of MatterClassification of Elements