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Indian Navy SSR Ideal and Non-Ideal Solutions — practice questions

Explore 29 free Ideal and Non-Ideal Solutions questions in Indian Navy SSR Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Ideal and Non-Ideal Solutions questions and exercises with answers

Showing questions 1–29 of 29.

Molality m is defined as:Read the answer and worked solution →Molality of a solution does not depend on:Read the answer and worked solution →Solubility of N2 in water at 25°C is 6.8 × 10⁻⁴ mol/L at 1 atm partial pressure. By Henry's law, at 5 atm partial pressure of N2:Read the answer and worked solution →Molarity M is defined as:Read the answer and worked solution →Henry's law states partial pressure of a gas above liquid is proportional to: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

Molality m is defined as:

  1. Mass of solute per total mass
  2. Mole fraction
  3. Moles solute per litre of solution
  4. Moles solute per kilogram of SOLVENT
Show answer and solution

Correct answer: D. Moles solute per kilogram of SOLVENT

Molality (m) = moles of solute / kg of solvent. Used for colligative property calculations because, unlike molarity, it does not depend on temperature.

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Molality of a solution does not depend on:

  1. Molar mass of solute
  2. Mass of solute
  3. TEMPERATURE
  4. Mass of solvent
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Correct answer: C. TEMPERATURE

Molality = moles solute / kg solvent. Mass does not change with temperature. Volume does. So molarity changes with T, but molality does not. This is why molality is preferred for colligative property calculations.

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Solubility of N2 in water at 25°C is 6.8 × 10⁻⁴ mol/L at 1 atm partial pressure. By Henry's law, at 5 atm partial pressure of N2:

  1. 6.8 × 10⁻⁴
  2. 6.8 × 10⁻⁵
  3. 3.4 × 10⁻³
  4. 6.8 × 10⁻²
Show answer and solution

Correct answer: C. 3.4 × 10⁻³

By Henry's law: C ∝ P. At 5 atm: C = 5 × 6.8 × 10⁻⁴ = 3.4 × 10⁻³ mol/L.

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