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Chemical Engineering :: Chemical Process

Chemical Process - Section 1
Chemical Process - Section 2
Chemical Process - Section 3
Chemical Process - Section 4
Chemical Process - Section 5
Chemical Process - Section 6
Chemical Process - Section 7
Chemical Process - Section 8
Chemical Process - Section 9
Chemical Process - Section 10
Chemical Process - Section 11
Chemical Process - Section 12
Chemical Process - Section 13
Chemical Process - Section 14
Chemical Process - Section-15

  1. The noble gas which occurs most abundantly in the atmosphere is

    2. A.
    helium
    B.
    neon
    C.
    krypton
    D.
    argon

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  2. Production of alcohol by fermentation of molasses is an __________ process.

    3. A.
    anaerobic
    B.
    aerobic
    C.
    endothermic
    D.
    both(b) and (c)

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  3. Main constituents of portland cement are calcium aluminate and

    4. A.
    gypsum
    B.
    silicates
    C.
    sodium silicate
    D.
    carbonates

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  4. Pick out the wrong statement.

    5. A.
    High early strength cement are made from materials having high silica to lime ratio.
    B.
    The function of gypsum in cement is to enhance its initial setting rate.
    C.
    Acid resistant cements are known as silicate cement.
    D.
    Major component of greyish portland cement is tricalcium silicate.

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  5. Common salt is generally not produced commonly by __________ method from brine.

    6. A.
    freeze drying
    B.
    electrolytic
    C.
    solar evaporation
    D.
    vacuum evaporation

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  6. Which of the following is a detergent ?

    7. A.
    Fatty alcohol
    B.
    Alkyl benzene sulphonate (ABS)
    C.
    Fatty acids
    D.
    Methylene chloride

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  7. Sulphuric acid is mainly used in the __________ industry.

    8. A.
    fertiliser
    B.
    steel
    C.
    paper
    D.
    paint

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  8. Pick out the wrong statement pertaining to nitric acid.

    9. A.
    About 90% of nitric acid is manufactured by Ostwald's process.
    B.
    It is a strong mono basic acid which reacts with almost all the metals except noble metals.
    C.
    Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO2).
    D.
    Arc process of nitric acid manufacture is economical as compared to Ostwald's process.

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  9. Alcohol percentage in molasses may be around

    10. A.
    10
    B.
    40
    C.
    70
    D.
    85

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  10. Main use of hydrazine is

    11. A.
    as a rocket fuel
    B.
    in water treatment
    C.
    as a disinfectant
    D.
    as fire retardant

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