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  • Question
  • Viscose rayon is chemically


  • Options
  • A. cellulose nitrate
  • B. regenerated cellulose nitrate
  • C. cellulose acetate
  • D. regenerated cellulose acetate

  • Correct Answer
  • regenerated cellulose acetate 


  • Chemical Process problems


    Search Results


    • 1. Frasch process is for

    • Options
    • A. making oxygen
    • B. producing helium
    • C. mining sulphur
    • D. making nitrogen
    • Discuss
    • 2. Paper pulp produced by kraft/sulphate process is

    • Options
    • A. bleached easily
    • B. dull white in color
    • C. strong fibrous
    • D. dark colored
    • Discuss
    • 3. Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?

    • Options
    • A. High cost of mercury.
    • B. High specific gravity of mercury.
    • C. Non-availability of high purity mercury.
    • D. Pollution of water stream by mercury.
    • Discuss
    • 4. Styrene is produced from ethyl benzene by the process of

    • Options
    • A. dehydrogenation
    • B. oxidation
    • C. alkylation
    • D. dehydration
    • Discuss
    • 5. Which is the main reducing agent during production of iron from iron ore in a blast furnace?

    • Options
    • A. C
    • B. CO
    • C. CO2
    • D. H2
    • Discuss
    • 6. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.

    • Options
    • A. exothermic
    • B. endothermic
    • C. catalytic
    • D. autocatalytic
    • Discuss
    • 7. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.

    • Options
    • A. Ostwald's
    • B. Bosch
    • C. Solvay
    • D. Haber's
    • Discuss
    • 8. Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

    • Options
    • A. CaO
    • B. MnO2
    • C. ZnO
    • D. FeS
    • Discuss
    • 9. Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

    • Options
    • A. 1 - 2
    • B. 15 - 20
    • C. 50 - 60
    • D. 80 - 85
    • Discuss
    • 10. Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

    • Options
    • A. adsorbs
    • B. oxidises
    • C. reduces
    • D. converts
    • Discuss


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