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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

Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?

A Calcium nitrate
B Calcium ammonium nitrate (CAN)
C Urea
D Ammonium sulphate
Correct Answer: Urea

Superphosphate is manufactured by reacting phosphate rock with_____________________?

A Acetic acid
B Sulphuric acid
C Aluminium chloride
D None of these
Correct Answer: Sulphuric acid

In an ammonia plant, the purge off is essential to___________________?

A Maintain inert gas concentration within a limit
B Remove excess poisonous gases
C Maintain H2 : N2 ratio at 3 :1
D Remove uncondensed ammonia vapour
Correct Answer: Maintain H2 : N2 ratio at 3 :1

Ammonia synthesis gas is produced from natural gas by___________________?

A Thermal cracking
B Steam reforming
C Partial oxidation
D Hydrogenation
Correct Answer: Steam reforming

Chemical formula of biuret is_________________?

A NH2.CO.NH2
B NH3.COO.NH3
C NH2CONHCONH2
D NH4COONH2
Correct Answer: NH2CONHCONH2

Heating of ortho-phosphoric acid to 250°C produces___________________?

A Meta-phosphoric acid
B Pyrophosphoric acid
C No change in it
D None of these
Correct Answer: Pyrophosphoric acid

Potassic fertilisers do not promote the development of ______________________?

A Stems & leaves during early stage of plant growth
B Starches of potatoes & grains
C Sugar of fruits & vegetables
D Fibrous materials of plants
Correct Answer: Stems & leaves during early stage of plant growth

The main constituent of rock phosphate is _____________________?

A Mono-calcium phosphate
B Di-calcium phosphate
C Fluorspar
D None of these
Correct Answer: Di-calcium phosphate

Base suspension fertiliser essentially contains___________________?

A 13% N2 and 43% P2O5
B 43% N2 and 13% P2O5
C 43% N2 and 13% K2O
D 43% K2O and 43% P2O5
Correct Answer: 13% N2 and 43% P2O5

Fertiliser value of a nitrogenous fertiliser is expressed in terms of its ______________ content?

A N2
B KNO3
C NO2
D NHO3
Correct Answer: N2
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