Chemical Engineering MCQs

6108 MCQs (Page 134 of 611)

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Addition of calcium oxide to water produces___________________?

A. Exothermic heat
B. Hissing sound
C. Slaked lime
D. All a , b. & c .

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____________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia ?

A. Solvay
B. Ostwald’s
C. Haber’s
D. None of these

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Dense soda ash used in the manufacture of glass, is chemically represented by__________________?

A. Na2co3
B. Na2co3.10h2o
C. Na2co3.h2o
D. Na2hco3

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Which of the following is a detergent ?

A. Benzene hexachloride
B. Alkyl benzene sulphonate
C. Polytetrafluoroethylene
D. Cellulose nitrate

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Coagulant is used _________________ filtration?

A. Before
B. After
C. During
D. To avoid

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In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by ?

A. Increasing the oxygen concentration
B. Putting more quantity of v2o5 catalyst in the converter
C. Removing some quantity of so3 during intermediate stage
D. Maintaining low temperature & pressure in the converter

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Calgon used in water treatment is chemically ____________________?

A. Sodium phosphate
B. Sodium hexametaphosphate
C. Calcium phosphate
D. Tricresyl phosphate

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Caprolactam (a raw material for nylon-6 manufacture) is produced from ___________________?

A. Phenol
B. Naphthalene
C. Benzene
D. Pyridine

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The type of high refractive index glass used in optical instruments is _____________ glass?

A. Pyrex
B. Flint
C. Crookes
D. None of these

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Nitrogen is an essential component of ____________________?

A. Mineral salts
B. Carbohydrates
C. Fats
D. Proteins

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