Chemical Process - Chemical Engineering Questions and Answers

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Which of the following is the main constituent of the mother liquor produced in salt industry?

Quick lime

Glauber's salt

Salt petre

Bromine

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Process conditions in fermentator used for production of penicillin is

25°C, 2 atm

50°C, l0 atm

30°C, 200 mm Hg (absolute)

90°C, 45 atm

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Ordinary glass is not a/an

Amorphous isotropic material

Supercooled liquid

Material with sharp definite melting point

Electrical insulator

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Absorption of SO₃ in 97% H₂SO₄ is

Exothermic

Endothermic

Not possible

None of these

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The most reactive allotropic form of phosphorus is __________ phosphorus.

Red

Yellow

Violet

Black

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Phosphoric acid is prepared from

Cryolite

Chalcopyrite

Rock phosphate

None of these

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Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by

Iron-steam reaction

Electrolysis of water

Steam reforming of naphtha

Its cryogenic separation from coke oven gas

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Sea water contains about __________ ppm of bromine.

500

1700

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Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

-83

-183

-196

-218