1-Feb
1-Mar
1-Sep
3
✅ The correct answer is option A.
Chemical Reaction Engineering MCQs
With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will
Increase
Decrease
Remain same
Data in insufficient; can’t be predicted
✅ The correct answer is option A.
A typical example of an exothermic reversible reaction conducted at high pressure in industry is
Dehydration of ethanol
Methanol synthesis
Reformation of methane
Polymerisation of ethylene
✅ The correct answer is option A.
For a fluidised bed reactor, the most suitable/relevant model is a __________ model.
Tank in series
Bubbling bed
Plug flow
None of these
✅ The correct answer is option B.
The eddy diffusivity for a liquid in plug flow must be
1
0
∞
Between 0 and 1
✅ The correct answer is option B.
The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is
0.875
0.5
0.425
Data insufficient to calculate
✅ The correct answer is option A.
For the same residence time, which one will give the maximum conversion?
Single stirred tank (v = 5 litres)
Two stirred tank (each of 2.5 litres) in series
Stirred tank followed by tubular flow reactor (each of 2.5 litres)
Single tubular flow reactor (v = 5 litres)
✅ The correct answer is option D.
In case of calcination of limestone, CaCO₃ CaO + CO₂, the addition of more of CaO will result in __________ in the concentration of CO₂.
No change
Increase
Decrease
Unpredictable from the data
✅ The correct answer is option A.
Which of the following chemical reactions will be favoured by low pressure ?
2HI ⇋ H₂ + I₂
N₂O₂ ⇋ 2NO₂
N₂ + O₂ ⇋ 2NO
None of these
✅ The correct answer is option B.
The rate constant of a reaction is a function of the
Time of reaction
Temperature of the system
Extent of reaction
Initial concentration of the reactants
✅ The correct answer is option B.