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MP Board Class 12 (MPBSE) Chemical Kinetics — practice questions — page 2

Explore 39 free Chemical Kinetics questions in MP Board Class 12 (MPBSE) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Chemical Kinetics questions and exercises with answers

Showing questions 31–39 of 39.

Flip and pair: term with meaningRead the answer and worked solution →Tap every factor the chapter says affects the rateRead the answer and worked solution →Complete the collision theory modificationRead the answer and worked solution →Which quantity is being described?Read the answer and worked solution →Assertion and reason: rates and constantsRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →Order the energy story of a reactionRead the answer and worked solution →True or false: the Arrhenius pictureRead the answer and worked solution →Spot the odd one outRead the answer and worked solution →

Worked practice questions

Flip and pair: term with meaning

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Matching pairs
  1. A
    Rate law
    B
    rate as a function of concentrations
  2. A
    Order
    B
    sum of the powers in the rate law
  3. A
    Molecularity
    B
    species in one elementary step
  4. A
    Ea
    B
    activation energy
  5. A
    Steric factor
    B
    orientation of colliding molecules
  6. A
    Rate constant
    B
    the proportionality factor
The chapter's vocabulary. Source: syllabus Chemistry Part I, Ch 3 Chemical Kinetics.

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Tap every factor the chapter says affects the rate

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Questions
  1. Items
    1. Text
      Temperature
      Matches the category
      Yes
    2. Text
      Concentration of reactants
      Matches the category
      Yes
    3. Text
      Presence of a catalyst
      Matches the category
      Yes
    4. Text
      Colour of the vessel
      Matches the category
      No
    5. Text
      The day of the week
      Matches the category
      No
    Category
    A factor syllabus names as affecting rate
Three named factors, no more. Source: syllabus Chemistry Part I, Ch 3 Chemical Kinetics.

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Complete the collision theory modification

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Missing parts
  1. Answer
    steric
    Choices
    1. steric
    2. thermal
    3. catalytic
  2. Answer
    orientation
    Choices
    1. orientation
    2. speed
    3. mass
  3. Answer
    effective
    Choices
    1. effective
    2. elastic
    3. random
Complete the statement
Collision theory introduces a {0} factor P, which accounts for the {1} of the colliding molecules and so for {2} collisions.
Collision theory adds orientation to the Arrhenius picture. Source: syllabus Chemistry Part I, Ch 3 Chemical Kinetics.

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