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Indian Navy AA (Artificer Apprentice) Reactions in Aqueous Solution — practice questions

Explore 26 free Reactions in Aqueous Solution questions in Indian Navy AA (Artificer Apprentice) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Reactions in Aqueous Solution questions and exercises with answers

Showing questions 1–26 of 26.

Colligative properties depend on:Read the answer and worked solution →Molality of a solution does not depend on: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

Colligative properties depend on:

  1. Mass of solute only
  2. Temperature only
  3. Nature of solute
  4. NUMBER of solute particles, not their nature
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Correct answer: D. NUMBER of solute particles, not their nature

Colligative properties (BP elevation, FP depression, osmotic pressure, vapour pressure lowering) depend only on the NUMBER of dissolved particles per unit solvent, not the chemical identity. (Ionic solutes give more particles via dissociation.)

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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
Show answer and solution

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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Match each scientist to their contribution

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Matching pairs
  1. Left
    Kossel
    Right
    electrostatic attraction between ions, giving electrovalency
  2. Left
    Lewis
    Right
    covalent bonding by sharing electron pairs
  3. Left
    Lewis dot symbols
    Right
    show the valence electrons of an atom
  4. Left
    Lewis dot structures
    Right
    show the bonding in a molecule
The chapter opens with these two accounts of bonding. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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