Chemical Process Principles Objective Practice Questions - Set 43 - ObjectiveBooks

Chemical Process Principles Objective Practice Questions - Set 43

Practice Test: Question Set - 43

1. Flash point of most vegetable oils is about __________ °C.
    (A) 50
    (B) 100
    (C) 200
    (D) 300

2. Glycerine can be obtained from
    (A) Fat
    (B) Naphthalene
    (C) Cumene
    (D) Sucrose

3. Common salt is generally not produced commonly by __________ method from brine.
    (A) Freeze drying
    (B) Electrolytic
    (C) Solar evaporation
    (D) Vacuum evaporation

4. Which of the following is not produced on commercial scale from sea water?
    (A) Bromine
    (B) Magnesium compounds
    (C) Potassium compounds
    (D) Sodium sulphate

5. Dacron (or Terylene) fibres as compared to nylon fibres have
    (A) Better heat & acid resistant properties
    (B) Poorer resistance to alkalis
    (C) Poorer dyeability
    (D) All (a), (b) and (c)

6. Parathion and Malathion are
    (A) Pesticides
    (B) Plasticizers for unsaturated polyesters
    (C) Pain-relieving drugs (analgesic)
    (D) Tranquilisers

7. Which of the following is a constituent of coffee?
    (A) Caffeine
    (B) Nicotine
    (C) Calgon
    (D) Lignin

8. Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.
    (A) Phthalic anhydride
    (B) Vinyl chloride
    (C) Maleic anhydride
    (D) Dacron

9. Sudden temperature fluctuation does not affect pyrex glass, because of its
    (A) Low co-efficient of expansion
    (B) High co-efficient of expansion
    (C) High melting point
    (D) Both (b) and (c)

10. Grignard reagent is chemically known as
    (A) Ethyl magnesium chloride
    (B) Methyl magnesium chloride
    (C) Dichlorophenol
    (D) Monochloroacetic acid

11. Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
    (A) Nylon-6
    (B) Dacron
    (C) Polyester
    (D) PVC

12. Use of hydrated lime in water treatment
    (A) Before filtration, reduces the bacterial load on filters
    (B) After filtration, combats the corrosiveness of water due to the presence of O2 & CO2
    (C) Is to adjust the pH value
    (D) All (a), (b) and (c)

13. Sucrose content in cane sugar may be around __________ percent.
    (A) 50
    (B) 70
    (C) 95
    (D) 80

14. Plaster of Paris is
    (A) CaSO4.½H2O
    (B) Used for setting of broken bones
    (C) Both (a) and (b)
    (D) Same as gypsum

15. Commercial scale production of hydrogen from iron-steam reaction represented by,

3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is

    (A) A slow reaction
    (B) A discontinuous reaction (requiring regeneration of iron by water gas intermittently)
    (C) Still in development stage (by employing fluidized bed technique)
    (D) All (a), (b) and (c)

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