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ChELE Concept > CPI > Flashcards

CPI Flashcards

1
Q

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

A

Ostwald’s

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2
Q

The catalyst used in shift converter is

A

nickel

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3
Q

DDT stands for

A

dichloro-diphenyl-trichloroethane

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4
Q

Bleaching action of bleaching powder is due to its __________ properties.

A

oxidising

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5
Q

Which of the following is not required in the manufacture of soda ash by Solvay process ?

A

Nitric acid

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6
Q

The purpose of tanning in leather industry is to

A

stiffen the leather

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7
Q

Main constituent of dolomite is

A

MgCO3

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8
Q

Conversion of CO to CO2 by steam in presence of a catalyst is called

A

shift conversion

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9
Q

Portland cement consists mainly of

A

CaO & SiO2

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10
Q

Cumene (isopropyl benzene) is made by

A

propylene alkylation of benzene.

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11
Q

Mannheim furnace is used in the manufacture of

A

hydrochloric acid

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12
Q

Thermosetting materials

A

are cross-linked molecules

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13
Q

Nickel is not used as a catalyst in the

A

Ostwald’s process of HNO3 manufacture.

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14
Q

__________ iron is the purest form of iron.

A

Wrought

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15
Q

Alcohol is produced by the

A

hydrolysis of an ether

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16
Q

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

A

roasting

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17
Q

Pick out the true statement pertaining to water treatment.

A

Normally, the turbidity is removed by adding a coagulent prior to sedimentation.

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18
Q

ransportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of

A

nitric acid

19
Q

The most stable allotropic form of phosphorous is the __________ phosphorous.

A

black

20
Q

Function of thinner in a paint is to

A

suspend pigments & dissolve film forming materials

21
Q

Rancidity of the fatty oil can be reduced by its

A

hydrogenation

22
Q

Phenol formaldehyde

A

employs condensation polymerisation

23
Q

Shrinkage volume in cement setting does not depend upon the

A

sand to cement ratio

24
Q

A mineral is termed as ‘ore’, if

A

a metal can be economically extracted from it

25
Q

Inversion of sucrose produces

A

glucose

26
Q

Ore concentration by froth floatation utilises the __________ of ore particles.

A

wetting characteristics

27
Q

The most commonly used substance to speed up the sedimentation of sewage is

A

lime

28
Q

Wine, rum & Vodka are prepared by the formulation of

A

Wine - fruit juice
Rum - sugar beet
Vodka - rye

29
Q

The manufacture of Kraft pulp is done by a/an __________ process.

A

alkaline

30
Q

Industrial production of chloroform requires acetone and

A

calcium hypochlorite

31
Q

Styrene (a monomer for the production of polystyrene) is commercially produced by

A

catalytic dehydrogenation of ethyl benzene.

32
Q

Hydrogenation of oil takes place in a/an __________ reactor.

A

trickle bed

33
Q

Fatty material used in soap making is

A

tallow

34
Q

Favourable conditions for the liquefaction of gases in general are

A

high pressure & low temperature.

35
Q

__________ nature of hypo (sodium thiosulphate) makes it useful in photography.

A

Complex forming

36
Q

__________ is an ore of lead.

A

Galena

37
Q

Which of the following is an yellow pigment ?

A

Lead chromates

38
Q

Catalytic oxidation of toluene produces

A

phenol

39
Q

SO2 is bubbled through hot sugar cane juice to

A

act as an acidifying agent.

40
Q

An industrial process for making hydrazine from ammonia and hypochlorite ion in aqeous solution.

A

Raschig Process

41
Q

A process used in paper production in which sulfur dioxide is added to a mildly acidic digestion liquor to yield hydrogen sulfite ions.

A

Sulfite process

42
Q

In Kraft process of paper manufacture, while cooking liquor consists of caustic soda

A

Sodium sulfide, sodium carbonate

43
Q

Epsom Salt

A

Magnesium Sulfate

44
Q

Which of the following is also known as black diamond

A

Carbonado

ChELE Concept (5 decks)

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