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CPI > section 8 > Flashcards

section 8 Flashcards

1
Q

In the Solvay process, the product from the
calciner is
a. light soda ash
b. dense soda ash
c. sodium bicarbonate
d. dehydrated soda ash

A

a

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2
Q

Commercially ethylene is produced from naphtha
by
a. catalytic cracking.
b. catalytic dehydrogenation.
c. pyrolysis.
d. Hydrocracking.

A

d

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3
Q

Poly Vinyl Chloride (P.V.C.) is a __________
material.
a. thermosetting
b. thermoplastic
c. fibrous
d. chemically active

A

b

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4
Q

Pig iron is produced by blast furnaces in India
using mostly the iron ore named
a. hematite
b. magnetite
c. siderite
d. Chalcopyrite

A

a

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5
Q

The difference between saponification value and
acid value is
a. called ester value.
b. always negative.
c. constant for all fatty oils.
d. none of these.

A

a

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6
Q

Fourdrinier machine is used in the manufacture
of
a. nylon-6
b. paper
c. antibiotics
d. Sugar

A

b

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7
Q

Pencillin is made employing __________
fermentation process.
a. continuous
b. aerobic batch
c. anaerobic batch
d. none of these

A

b

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8
Q

Sulphuric acid saturated with SO3 is called
a. concentrated H2SO4.
b. sulphurous acid.
c. oleum.
d. none of these.

A

c

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9
Q

Nylon 66 is so named because the
a. average degree of polymerisation of the
polymer is 1966.
b. number of carbon atoms between two
nitrogen atoms are 6.
c. number of nitrogen atoms between two
carbon atoms are 6
d. polymer was first synthesised in 1966.

A

a

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10
Q

Wet chlorine gas produced during electrolysis
of brine is dehydrated by
a. spraying 66° Be H2SO4 counter current to
the flow of the gas.
b. passing it through a bed of diatomaceous
earth.
c. passing it through a bed of silica gel.
d. none of these.

A

a

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11
Q

CaSO4 .1⁄2 H2O is known as
a. blue vitriol
b. plaster of Paris
c. gypsum
d. Zeolite

A

b

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12
Q

__________ of quicklime produces slaked lime.
a. Hydration
b. Dehydration
c. Hydrogenation
d. none of these

A

a

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13
Q

Main product in calcium carbide-water reaction
is
a. Ca(OH)2
b. C2H2
c. CO2
d. CaCO3

A

b

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14
Q

Glauber’s salt is chemically
a. calcium sulphate
b. potassium sulphate
c. potassium chlorate
d. none of these

A

d

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15
Q

Which of the following fuel gases contains
maximum amount of carbon monoxide?
a. Coke oven gas
b. Water gas
c. Blast furnace gas
d. L.D. converter gas

A

d

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16
Q

Baking soda is chemically represented by
a. Na2CO3
b. NaHCO3
c. Na2CO3.H2O
d. Na2CO3.10H2O

A

b

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17
Q

P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
a. bakelite
b. neoprene
c. teflon
d. Nylon-66

A

c

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18
Q

Which of the following is an additional step in
the manufacture of paper from bagasse as compared
to that from bamboo?
a. Depithing
b. Digestion
c. Bleaching
d. None of these

A

a

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19
Q

Percentage of glycerene present in the spent lye
obtained during soap manufacture is about
a. 0.5
b. 5
c. 20
d. 35

A

b

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20
Q

Concentration of NaOH solution produced by
diaphragm electrolytic cell is about __________
percent.
a. 10
b. 25
c. 50
d. 98

A

a

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21
Q

Commercial production of Vanaspati is done by
__________ of edible vegetable oils.
a. hydrogenation
b. oxidation
c. hydrolysis
d. Hydrocracking

A

a

22
Q

Which catalyst is used in the manufacture of
ethylene oxide by oxidation of ethylene?
a. AgO
b. Al2O3
c. ZnCl2
d. Fe2O3

A

a

23
Q

Phenolic antiseptics are added in the
__________ soap.
a. shaving
b. medicated
c. metallic
d. Transparent

A

b

24
Q

Solvay process is used for the manufacture of
a. caustic soda
b. soda ash
c. caustic potash
d. soda lime

A

b

25
Q

A mixture of chlorine & sodium bromide acts as
a/an
a. insecticides
b. analgesic drug
c. fire retardant
d. hydrogenation catalyst

A

c

26
Q

Which is a high grade pulp?
a. Rag pulp
b. Mechanical pulp
c. Sulphate pulp
d. Sulphite pulp

A

c

27
Q

Stereospecific agents are exemplified by
a. radiation
b. supported metal oxide catalysts
c. ziegler catalysts
d. all (a), (b) & (c)

A

d

28
Q

Starting material for the production of butadiene
in India is
a. naphthalene
b. benzol
c. ethyl alcohol
d. phthalic anhydride

A

c

29
Q

Yellow phosphorus is transported under
a. air
b. water
c. nitrogen
d. Helium

A

b

30
Q

Permanent hardness of water can be removed by
a. simply boiling.
b. adding alum.
c. passing it through cation & anion
exchangers.
d. all (a), (b) and (c).

A

c

31
Q

Celluloid is chemically
a. cellulose acetate
b. regenerated cellulose
c. cellulose nitrate
d. cellulose acetate butyrate

A

c

32
Q

Double Contact Double Absorption (DCDA)
process is the most recent process for the
manufacture of
a. nitric acid
b. sulphuric acid
c. ammonium sulphate
d. hydrochloric acid

A

b

33
Q

Which of the following is an explosive?
a. Nitroglycerene
b. Trintrotoluene (TNT)
c. Cellulose nitrate
d. All (a), (b), and (c)

A

d

34
Q

Zeolite is used in the
a. water treatment.
b. glass manufacture.
c. hydrogenation of fatty oil as a catalyst.
d. development of exposed photographic
plate.

A

a

35
Q

Thermoplastic materials
a. do not soften on application of heat.
b. are heavily branched molecules.
c. are solvent insoluble.
d. none of these.

A

d

36
Q

Carbon tetrachloride (CCl4) is the starting raw
material for the manufacture of
a. trichloroethylene
b. perchloroethylene
c. parathion
d. Methanol

A

b

37
Q

Salt is added in the kettle during soap
manufacture to separate
a. soap from lye.
b. glycerine from lye.
c. the metallic soap.
d. the unsaponified fat from soap.

A

a

38
Q

Manufacture of phthalic anhydride uses
__________ as a catalyst.
a. Ni
b. Cr
c. V2O5
d. Al2O3

A

c

39
Q

Which of the following is not a product of coal
tar distillation?
a. Anthracene
b. Cresote oil
c. Carbolic oil
d. None of these

A

d

40
Q

Teflon is
a. phenol formaldehyde.
b. an inorganic polymer.
c. poly tetrafluoroethylene (P.T.F.E.).
d. a monomer.

A

c

41
Q

Chrome tanning and vegetable tanning are done
for
a. light & heavy leather respectively.
b. heavy & light leather respectively.
c. both light & heavy leather.
d. neither light nor heavy leather.

A

a

42
Q

Catalyst used during the manufacture of
‘Vanaspati Ghee’ is
a. zinc
b. nickel
c. platinum
d. Copper

A

b

43
Q

Iron ore hametite is concentrated using
a. electro magnetic separation mainly.
b. gravity separation.
c. froth floatation.
d. roasting.

A

b

44
Q

Refractory bricks burnt at very high temperature have got
a. greater resistance to corrosion by slags.
b. less resistance to corrosion by slags.
c. high spalling tendency.
d. none of these.

A

a

45
Q

Nitrile rubber is produced by the polymerisation of
a. acrylonitrile and butadiene.
b. acrylonitrile and styrene.
c. isobutylene and isoprene.
d. none of these.

A

a

46
Q

Carbon disulphide is mainly used in the production of
a. viscose rayon.
b. corundum.
c. plasticiser for unsaturated polyester.
d. Paints.

A

a

47
Q

99.5% purity oxygen is used in
a. cutting and welding by oxy-acetylene
flame.
b. hospitals for medicinal purposes.
c. gas masks and artificial breathing
apparatus.
d. all (a), (b), and (c).

A

d

48
Q

Nylon-6 is manufactured from
a. caprolactum.
b. hexamethylene diamine and adipic acid.
c. hexamethylene diamine and maleic
anhydride.
d. hexamethylene diamine and sebacic acid.

A

a

49
Q

Permanent hardness of water can be removed by
a. boiling.
b. adding Ca(OH)2.
c. boiling it with Na2CO3.
d. none of these.

A

c

50
Q

Sizing material is incorporated in paper to
a. impart resistance to penetration by liquids.
b. increase its thickness.
c. increase its flexibility & opacity.
d. increase its brightness.

A

a

CPI (14 decks)

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