Home / Chemical Engineering / Chemical Process :: Section-15

Chemical Engineering :: Chemical Process

  1. Ultimate analysis of coal determines its __________ content.

  2. A.

     Carbon, hydrogen, nitrogen & sulphur

    B.

     Carbon, ash, sulphur & nitrogen

    C.

     Carbon, sulphur, volatile matter & ash

    D.

     Carbon, volatile matter, ash & moisture


  3. A substance produced by a living organism and capable of anti-microbial activity is called a/an

  4. A.

     Antibiotic

    B.

     Antiseptic

    C.

     Disinfectant

    D.

     None of these


  5. Producer gas consists mainly of

  6. A.

     CO, CO₂ N₂, H₂

    B.

     CO, H₂

    C.

     H₂, CH₄

    D.

     C₂H₂, CO₂, H₂


  7. Pick out the wrong statement.

  8. A.

     Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate

    B.

     Glass is decolorised during its manufac-ture by adding antimony oxide, mangnese dioxide or arsenic oxide

    C.

     Ordinary glass is represented chemically by Na₂O . CaO . 6SiO₂

    D.

     Red color is imparted to glass by addition of arsenic oxide


  9. Hydrogenation of oil/fat does not

  10. A.

     Improve its resistance to rancid oxidation

    B.

     Raise its melting point

    C.

     Remove double bonds

    D.

     None of these


  11. Builders are added in soap to act as

  12. A.

     Cleaning power booster

    B.

     Anti-redeposition agent

    C.

     Corrosion inhibitor

    D.

     Fabric brightener


  13. __________ is used as a catalyst in fat splitting.

  14. A.

     ZnO

    B.

     Ni

    C.

     V₂O₅

    D.

     FeO


  15. Sucrose is a disaccharide consisting of

  16. A.

     Glucose and glucose

    B.

     Glucose and fructose

    C.

     Glucose and galactose

    D.

     Fructose and galactose


  17. __________ is an ore concentrating metallurgical process involving a chemical change.

  18. A.

     Electromagnetic separation

    B.

     Froth floatation

    C.

     Roasting

    D.

     None of these


  19. Hydrodenation of vegetable oils is a/an __________ reaction.

  20. A.

     Endothermic

    B.

     Autocatalytic

    C.

     Exothermic

    D.

     Homogenous