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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

Pick out the wrong statement ?
A Fibrillation of fibre during paper manufacture is done to develop the strength in paper
B Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate
C Bagasse fibre contains both lignin & cellulose
D Presence of sodium sulphate in pulp makes the pulp bleachability poor
Correct Answer: Presence of sodium sulphate in pulp makes the pulp bleachability poor
Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc ?
A Sodium silicate
B Sodium borate
C Sodium tripolyphosphate (STPP)
D Caustic soda
Correct Answer: Sodium borate
Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils________________?
A Cause cholesterol build up and blood clotting
B Are prone to rancid oxidation
C Always contain some amount of nickel (as their complete removal is very difficult)
D Have affinity to retain harmful sulphur compounds
Correct Answer: Cause cholesterol build up and blood clotting
Catalytic oxidation of naphthalene produces_______________?
A Styrene
B Phenol
C Phthalic anhydride
D None of these
Correct Answer: Phthalic anhydride
RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically____________________?
A Cyclo trimethylene trinitramine
B Trinitro resorcinol
C Cyclo tetramethylene tetranitramine
D Trinitrobenzene
Correct Answer: Cyclo trimethylene trinitramine
Helium is produced on commercial scale from__________________?
A Air
B Natural gas
C Coke oven gas
D None of these
Correct Answer: Natural gas
Phenol formaldehyde resin is used as an adhesive in making__________________?
A Laminates
B Card boxes
C Furniture
D Books
Correct Answer: Laminates
During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as_______________________?
A It is very corrosive at elevated temperature
B Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be
C It decomposes on further increasing the temperature
D None of these
Correct Answer: Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be
In industrial nomenclature, alcohol means_________________?
A Butyl alcohol
B Propyl alcohol
C Ethanol
D Methyl alcohol
Correct Answer: Ethanol
Gun powder uses_____________________?
A Sulphur
B Charcoal
C Potassium nitrate
D All A , B, & C.
Correct Answer: All A , B, & C.
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