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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

Nickel is not used as a catalyst in the __________________ reaction ?
A Shift conversion
B Oil hydrogenation
C Steaming reforming of naphtha
D Ammonia cracking/dissociation
Correct Answer: Shift conversion
Main constituent of dolomite is __________________?
A CaCO3
B MgCO3
C K2CO3
D Na2CO3
Correct Answer: MgCO3
Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove____________________?
A Colour
B Turbidity
C Bacteria
D All A , B. and C.
Correct Answer: All A , B. and C.
Alcohol is produced by the___________________?
A Oxidation of an aldehyde
B Hydrolysis of an ether
C Esterification of a fat
D None of these
Correct Answer: Hydrolysis of an ether
Which of the following is an endothermic reaction ?
A Absorption of SO3 in 98% H2SO4
B C + H2O = CO + H2
C Thermal dissociation of iron pyrites
D Both B. and C.
Correct Answer: Both B. and C.
Hydrogenation of edible vegetable oils_________________?
A Is an exothermic reaction
B Increases their melting point
C Is done in presence of nickel catalyst
D All A , B. and C.
Correct Answer: All A , B. and C.
Pick out the wrong statement. Iodine value of an oil or fat is________________?
A The number of grams of iodine taken up by 100 gm of oil or fat
B A measure of its unsaturation
C Helpful in findings its adulteration & its suitability for making soap
D Independent of the type of oil, whether it is drying or non-drying
Correct Answer: Independent of the type of oil, whether it is drying or non-drying
Ca(OH)2 is called __________________?
A Quicklime
B Slaked lime
C Limestone
D Gypsum
Correct Answer: Slaked lime
Oxidation of ortho-xylene in presence of ______________ catalyst is done to produce phthalic anhydride on commercial scale ?
A Nickel
B Vanadium
C Alumina
D Iron
Correct Answer: Vanadium
Fumigant insecticides___________________?
A Kill insects, when they eat it
B Emit poisonous vapour
C Are absorbed throughout the plant
D None of these
Correct Answer: None of these
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