NEET Chemistry Equilibrium / साम्यावस्था Question Bank

done Question - Assertion & Reason Total Questions - 17

• question_answer1)

  Assertion: The equilibrium constant is fixed and is the characteristic of any given chemical reaction at a specified temperature.

  Reason: The composition of the final equilibrium mixture at a particular temperature depends upon the starting amount of reactants. [AIIMS 2000]

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer2)

  Assertion: \[{{K}_{p}}={{K}_{c}}\] for all reaction.

  Reason:  At constant temperature, the pressure of the gas is proportional to its concentration.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer3)

  Assertion: The equilibrium constant for the reaction\[CaS{{O}_{4}}.5{{H}_{2}}O(s)\]⇌\[CaS{{O}_{4}}.3{{H}_{2}}O(s)+2{{H}_{2}}O(g)\] is \[{{K}_{C}}=\frac{[CaS{{O}_{4}}.3{{H}_{2}}O]{{[{{H}_{2}}O]}^{2}}}{[CaS{{O}_{4}}.5{{H}_{2}}O]}\]

  Reason: Equilibrium constant is the ratio of the product of molar concentration of the substances produced to the product of the molar concentrations of reactants with each concentrations term raised to the power equal to the respective stoichiometric constant.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer4)

  Assertion: On cooling a freezing mixture, colour of the mixture turns to pink from deep blue for a reaction.\[Co({{H}_{2}}O){{_{6}^{2+}}_{(aq)}}+4C{{l}^{-}}_{(aq)}\]⇌ \[CoCl{{_{4}^{2-}}_{(aq)}}+6{{H}_{2}}{{O}_{(l)}}\].

  Reason: Reaction is endothermic so on cooling, the reaction moves to backward direction.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer5)

  Assertion: If \[{{Q}_{c}}\](reaction quotient)\[<{{K}_{C}}\](equilibrium constant) reaction moves in direction of reactants.

  Reason: Reaction quotient is defined in the same way as equilibrium constant at any stage of the reaction.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer6)

  Assertion: NaCl solution can be purified by passage of hydrogen chloride through brine.

  Reason: This type of purification is based on Le-Chaterlier's principle.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer7)

  Assertion: According to Le-Chatelier's principle addition of heat to an equilibrium solid ⇌ liquid results in decrease in the amount of solid.

  Reason: Reaction is endothermic, so on heating forward reaction is favoured.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer8)

  Assertion: Equilibrium constant has meaning only when the corresponding balanced chemical equation is given.

  Reason: Its value changes for the new equation obtained by multiplying or dividing the original equation by a number.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer9)

  Assertion: Equilibrium constant for the reverse reaction is the inverse of the equilibrium constant for the reaction in the forward direction.

  Reason: Equilibrium constant depends upon the way in which the reaction is written.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion ad reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer10)

  Assertion: The value of K gives us a relative idea about the extent to which a reaction proceeds.

  Reason: The value of K is independent of the stochiometry of reactants and products at the point of equilibrium.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer11)

  Assertion: Catalyst affects the final state of the equilibrium.

  Reason: It enables the system to attain a new equilibrium state by complexing with the reagents.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer12)

  Assertion: For the reaction, \[2N{{H}_{3}}(g)\]⇌ \[{{N}_{2}}(g)\] \[+3{{H}_{2}}(g)\], the unit of \[{{K}_{p}}\] will be atm.

  Reason: Unit of \[{{K}_{p}}\] is \[{{(atm)}^{\Delta n}}\].

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer13)

  Assertion: Effect of temperature of \[{{K}_{c}}\ \text{or}\ {{K}_{p}}\]depends on enthalpy change.

  Reason: Increase in temperature shifts the equilibrium in exothermic direction and decrease in temperature shifts the equilibrium position in endothermic direction.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer14)

  Assertion: For a gaseous reaction, \[xA+yB\] ⇌ \[lC+mD,\ {{K}_{p}}={{K}_{C}}\].

  Reason: Concentration of gaseous reactant is taken to be unity.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer15)

  Assertion: Ice ⇌water, if pressure is applied water will evaporate.

  Reason: Increase of pressure pushes the equilibrium towards the side in which number of gaseous mole decreases.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
  View Solution play_arrow

• question_answer16)

  Assertion: \[S{{O}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)\]⇌\[S{{O}_{3}}(g)+\] heat.

  Forward reaction is favoured at high temperature and low pressure.

  Reason: Reaction is exothermic.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
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• question_answer17)

  Assertion: For a reaction \[{{H}_{2}}(g)+{{I}_{2}}(g)\] ⇌ \[2HI(g)\] if the volume of vessel is reduced to half of its original volume, equilibrium constant will be doubled.

  Reason: According to Le-Chatelier principle, reaction shifts in a direction that tends to undo the effect of the stress.

  Read the assertion and reason carefully to mark the correct option out of the options given below:

   
  A)
  If both assertion and reason are true and the reason is the correct explanation of the assertion. done clear
  B)
  If both assertion and reason are true but reason is not the correct explanation of the assertion. done clear
  C)
  If assertion is true but reason is false. done clear
  D)
  If the assertion and reason both are false. done clear
  E)
  If assertion is false but reason is true. done clear
  View Solution play_arrow