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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

______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?
A Oxidising
B Reducing
C Complex forming
D Photochemical
Correct Answer: Complex forming
Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo ?
A Depithing
B Digestion
C Bleaching
D None of these
Correct Answer: Depithing
Flexible foam (for mattresses) is usually made of_____________________?
A PVC
B Silicone
C Polyurethanes
D Polyamides
Correct Answer: Polyurethanes
Thermoplastic materials_____________________?
A Do not soften on application of heat
B Are heavily branched molecules
C Are solvent insoluble
D None of these
Correct Answer: None of these
The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to___________________?
A Avoid mechanical weakening of fibre
B Remove lignin by way of crystallisation
C Increase the cellulose content
D None of these
Correct Answer: Avoid mechanical weakening of fibre
Main product in calcium carbide-water reaction is___________________?
A Ca(OH)2
B C2H2
C CO2
D CaCO3
Correct Answer: C2H2
The yield of tar from high temperature carbonisation of dry coal is about _______________ percent?
A 3
B 12
C 22
D 0.3
Correct Answer: 3
Permanent hardness of water can be removed by____________________?
A Simply boiling
B Adding alum
C Passing it through cation & anion exchangers
D All (A), B. and (C)
Correct Answer: Passing it through cation & anion exchangers
Bitterns is a/an_________________?
A Unsaturated fat
B Starting material for the production of iodine
C By-product of chlor-alkali industry
D None of these
Correct Answer: None of these
Nylon-66 is so named because the____________________?
A Average degree of polymerisation of the polymer is 1966
B Number of carbon atoms between two nitrogen atoms are 6
C Number of nitrogen atoms between two carbon atoms are 6
D Polymer was first synthesised in 1966
Correct Answer: Average degree of polymerisation of the polymer is 1966
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