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Chemical Engineering :: Chemical Process

  1. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

  2. A.

     Callagen

    B.

     Tannin

    C.

     Molasses

    D.

     Carbohydrate


  3. Contact process of sulphuric acid manufacture

  4. A.

     Yields acid of higher concentration than chamber process

    B.

     Yields acids of lower concentration than chamber process

    C.

     Is obsolete

    D.

     Eliminates absorber


  5. Catalytic oxidation of toluene produces

  6. A.

     Styrene

    B.

     Phenol

    C.

     Benzene

    D.

     Tri-nitro-toluene


  7. Which of the following processes can remove both temporary as well as permanent hardness of water?

  8. A.

     Filtration

    B.

     Boiling

    C.

     Distillation

    D.

     None of these


  9. Which of the following is not responsible for causing permanent hardness of water?

  10. A.

     Ca(HCO₃)₂

    B.

     CaCl₂

    C.

     MgCl₂

    D.

     None of these


  11. Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

  12. A.

     Brighten the faint images

    B.

     Remove metallic silver

    C.

     Convert silver chloride to silver

    D.

     Remove unexposed silver halide


  13. Liquor poisoning generally occurs due to the presence of __________ in it.

  14. A.

     Ethyl alcohol

    B.

     Impurities

    C.

     Methyl alcohol

    D.

     Carbonic acid


  15. Sulphur removal by heating of pyrite ore in presence of air is called its

  16. A.

     Reduction

    B.

     Roasting

    C.

     Calcination

    D.

     Smelting


  17. The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by

  18. A.

     Electrolysis

    B.

     Electrolytic reduction

    C.

     Electrolytic oxidation

    D.

     None of these


  19. Reaction of calcium carbide with water produces a gas, which is used

  20. A.

     As an illuminant

    B.

     For metal cutting/welding

    C.

     Both A & B

    D.

     Neither A nor B