Chemical Process - Chemical Engineering Questions and Answers

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Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

A slow reaction

A discontinuous reaction (requiring regeneration of iron by water gas intermittently)

Still in development stage (by employing fluidised bed technique)

All of the above

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Haemoglobin is a/an

Amino acid

Biological catalyst

Protein

Enezyme

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Chalcopyrite is the main ore of

Copper

Lead

Tin

Iron

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Phthalic anhydride is made by the

Oxidation of naphthalene

Oxidation of benzene

Dehydrogenation of ethyl benzene

None of these

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Iron ore hametite is concentrated using

Electro magnetic separation mainly

Gravity separation

Froth floatation

Roasting

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Hard water

Does not affect the lather formation by soap

Is not unfit for drinking purpose

Pollutes the water stream

All of the above

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Chemical formula of BHC, which is an insecticide is

C₆H₆Cl₆

C₆Cl₆

C₆H₅Cl

C₆H₄Cl₂

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At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

Independent of

Directly proportional to

Inversely proportional to

Proportional to the square of

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Which of the following is an explosive?

Nitroglycerene

Trintrotoluene (TNT)

Cellulose nitrate

All of the above