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MCQs

Total Questions : 2307 | Page 11 of 231 pages
Question 101. For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cpn, then what is the value of 'n' for this chemical reaction
  1.    1
  2.    2
  3.    3
  4.    0
 Discuss Question
Answer: Option A. -> 1
Question 102. The percent conversion of ethanol in the reactor is
  1.    100
  2.    97.5
  3.    95
  4.    2.5
 Discuss Question
Answer: Option A. -> 100
Question 103. Fractional conversion __________ for an exothermic reversible chemical reaction, when the temperature is maximum.
  1.    Increases
  2.    Remains unchanged
  3.    Decreases
  4.    Unpredictable from the data
 Discuss Question
Answer: Option C. -> Decreases
Question 104. Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as
  1.    k ∝ T1.5
  2.    k ∝ exp(-E/RT)
  3.    k ∝ √T
  4.    k ∝ T
 Discuss Question
Answer: Option C. -> k ∝ √T
Question 105. The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is
  1.    ∞
  2.    0
  3.    1
  4.    > 1
 Discuss Question
Answer: Option C. -> 1
Question 106. Vegetable oils are hydrogenated in a __________ reactor.
  1.    Slurry
  2.    Plug flow
  3.    Homogeneous catalytic
  4.    None of these
 Discuss Question
Answer: Option A. -> Slurry
Question 107. Which of the following is an independent variable for a batch tank reactor with uniform concentration and temperature?
  1.    Time
  2.    Useful volume of the tank
  3.    Diameter of the reactor
  4.    None of these
 Discuss Question
Answer: Option A. -> Time
Question 108. A reaction which is catalysed by a base is catalysed by all substances which have a tendency to
  1.    Lose a proton
  2.    Gain a proton
  3.    Gain an electron
  4.    None of these
 Discuss Question
Answer: Option B. -> Gain a proton
Question 109. In a/an __________ vessel, the fluid enters and leaves following plug flow.
  1.    Open
  2.    Closed
  3.    Open-closed
  4.    Close-opened
 Discuss Question
Answer: Option B. -> Closed
Question 110. In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii)
  1.    (i) exothermic (ii) endothermic
  2.    (i) exothermic (ii) exothermic
  3.    (i) endothermic (ii) enodthermic
  4.    (i) endothermic (ii) exothermic
 Discuss Question
Answer: Option D. -> (i) endothermic (ii) exothermic

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