Chemical Engineering MCQs

6108 MCQs (Page 110 of 611)

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Which of the following contains least amount of N2 ?

A. Coke oven gas
B. Blast furnace gas
C. Producer gas
D. Water gas (blue gas)

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Oxidation of SO2 to SO3 is favoured by______________________?

A. Low temperature and low pressure
B. Low temperature and high pressure
C. High temperature and low pressure
D. High temperature and high pressure

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Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?

A. 15-30
B. 90-100
C. 250-300
D. < 0

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Paper pulp produced by Kraft/sulphate process is__________________ ?

A. Bleached easily
B. Dull white in color
C. Strong fibrous
D. Dark colored

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White phosphorous is stored under water, because __________________?

A. It does not react with water
B. It is posionous
C. Its kindling temperature in dry air is very low
D. It is unstable

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Styrene is produced from ethyl benzene by the process of________________?

A. Dehydrogenation
B. Oxidation
C. Alkylation
D. Dehydration

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Pure rectified spirit contains about _________________ percent alcohol?

A. 45
B. 70
C. 95
D. 99.5

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The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?

A. Dilute h2so4
B. Oleum
C. Ultraviolet light
D. None of these

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Solvay process as compared to dual process (i.e. modified Solvay process) ?

A. Can use low grade brine
B. Has less corrosion problems
C. Involves higher investment in nh3 recovery units than that for crystallisation units for nh4cl
D. Both b. and c.

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Insulin is an __________________ drug?

A. Anti-malarial
B. Anti-tb
C. Antibiotic
D. None of these

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