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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

The number of H+ in 1 c.c solution of pH 13 is__________________?
A 6.023 × 1013
B 6.023 × 1010
C 6.023 × 107
D 1013
Correct Answer: 6.023 × 107
If 1.5 moles of oxygen combines with aluminium to form Al2O3, then the weight of aluminium (atomic weight = 27) used in this reaction is __________ gm?
A 27
B 54
C 5.4
D 2.7
Correct Answer: 54
In physical adsorption, as compared to chemisorption, the________________________?
A Quantity adsorbed per unit mass is higher
B Rate of adsorption is controlled by the resistance to surface reaction
C Activation energy is very high
D Heat of adsorption is very large
Correct Answer: Quantity adsorbed per unit mass is higher
1 bar is almost equal to __________________________ atmosphere?
A 1
B 10
C 100
D 1000
Correct Answer: 1
Two solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution_____________________?
A A2 is more alkaline than solution A2
B A1 is highly acidic
C A1 is very slightly acidic
D Both A. & C.
Correct Answer: Both A. & C.
Osmotic pressure of the solution can be increased by_________________?
A Decreasing its temperature
B Increasing the volume of the vessel containing the solution
C Diluting the solution
D None of these
Correct Answer: None of these
Pick out the wrong statement about the recycle stream in a process ?
A Recycling in a process stream helps in utilising the valuable reactants to the maximum with
B The ratio of the quantity of a reactant present in the reactor feed of a recycling operation to the
C Recycling in a process does not help in getting higher extent of reaction
D Recycling is exemplified by refluxing back a part of the distillate to the distillation column to
Correct Answer: Recycling in a process does not help in getting higher extent of reaction
Saturated molal absolute humidity of the vapor-gas mixture depends upon the______________________?
A Vapor pressure at dry bulb temperature
B Total pressure
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.
Measurement of the amount of dry gas collected over water from volume of moist gas is based on the___________________?
A Charle’s law
B Dalton’s law of partial pressures
C Avogadro’s hypothesis
D Boyle’s law
Correct Answer: Dalton’s law of partial pressures
How many phases are present at eutectic point ?
A 2
B 1
C 3
D unpredictable
Correct Answer: 3
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