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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. Heating of __________ to 120°C, produces plaster of paris.

    2. A.
    blue vitriol
    B.
    gypsum
    C.
    calcium silicate
    D.
    calcium sulphate

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  2. Pick out the wrong statement.

    3. A.
    Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98%.
    B.
    The chemical formula of oleum is H2S2O7, which is formed by saturating sulphuric acid with sulphur trioxide.
    C.
    Vitriol oil is nothing but technical sulphuric acid.
    D.
    Decomposition of sulphuric acid on heating does not start before its boiling.

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  3. Which of the following has sodium bicarbonate as its main constituent ?

    4. A.
    Baking soda
    B.
    Baking powder
    C.
    Washing soda
    D.
    none of these

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  4. Ordinary glass is not a/an

    5. A.
    amorphous isotropic material.
    B.
    supercooled liquid.
    C.
    material with sharp definite melting point.
    D.
    electrical insulator.

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  5. In premitive days, __________ was being manufactured by Leblanc Process.

    6. A.
    alum
    B.
    washing soda
    C.
    soda ash
    D.
    calcium carbide

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  6. The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at

    7. A.
    SASOL (in South Africa).
    B.
    Redcar (U.K.).
    C.
    Los-Angles (U.S.A.).
    D.
    Trombay (India).

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  7. Lurgi coal gasifier is a pressurised __________ bed reactor.

    8. A.
    moving
    B.
    fixed
    C.
    fluidised
    D.
    entrained

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  8. Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils

    9. A.
    cause cholesterol build up and blood clotting.
    B.
    are prone to rancid oxidation.
    C.
    always contain some amount of nickel (as their complete removal is very difficult).
    D.
    have affinity to retain harmful sulphur compounds.

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  9. Paper grade bamboo contains about __________ percent cellulose.

    10. A.
    5
    B.
    20
    C.
    40
    D.
    60

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  10. Carboxymethyl cellulose (CMC) is added in detergents to act as a/an

    11. A.
    surfactant
    B.
    builder
    C.
    optical brightening agent
    D.
    anti soil redeposition agent

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