CPI Flashcards by Alexander Busto

Oxidation of SO2 to SO3 is favored by

low temperature and high pressure

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The catalyst for the oxidation of SO2 to SO3

Vanadium pentoxide (V2O5)

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Components of a gunpowder

Sulfur (oxidizing agent)
Charcoal (fuel)
Salpeter (KNO3) (source of oxygen that will initiate the reaction)

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Starting raw material of alum

Bauxite

Bauxite — Alumina — Aluminum sulfate — Alum

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Used in food industry as leavening agent

Ammonium bicarbonate

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Paper pulp produced by the Kraft/Sulfur process is

Strong and Fibrous

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Claude’s process of gas liquefaction

adiabatic expansion against turbine

CORRECT: Joule-Thomson Expansion Cooling
1. Compression
2. Cooling
3. Expansion

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Viscose Rayon

regenerated cellulose acetate

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Styrene is formed from ethyl benzene through the process of

Dehydrogenation

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Production of gelatin

Hydrolysis of collagen

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Sucrose content of raw juice from sugar cane

15-20%

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Fusel Oil

A mixture of high molecular weight of alcohols

Fusel is a German word that means bad liquor

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SBR has _ compared to natural rubber

poorer tensile strength
poorer resistance to oxidation
greater amount of heat build-up under heavy loading

ALL OF THE ABOVE

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Added to decrease the coefficient of thermal expansion of glass

Zinc oxide (ZnO)

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Catalyst in measuring DDT

Oleum

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Salt cake is chemically represented by

Na2SO4

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Sweetest sugar

Fructose

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Producer gas is composed of

CO, CO2, N2, H2

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Wood charcoal is used in the de-coloration of sugar because it ___ the colored material

Adsorbs

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Esterification produces _____

Soap

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Phenol is mainly used

to produce phenol formaldehyde

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All gasification reaction are

a. exothermic
b. endothermic

Endothermic

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In sulphate pulp manufacture, pressure and temperature of digestor

10 atm
170-180 °C

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Polycaprolactum

Nylon-6

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Mining sulfur

Frasch method

Production if Na2CO3 by ammonia soda process

Solvay

Main reducing agent during iron production from iron ore in furnace

Oil preferred for paint manufacturing

Drying oil

Ethylene oxide is produced by oxidation of ethylene in the presence of AgO catalyst at

5 atm 275°C

Glycerine is used in a. Manufacturing explosive b. Conditioning tobacco c. Pharmaceuticals d. All e. None

All

Starting material in production of phenol and acetone

Cumene

High refractive index used in optical instruments

flint glass

Free alkali in a toilet soap is ___ that in laundry soap a. less than b. more than

less than

Concentration of H2O2 is done by

vacuum crystallization

Catalyst in fat spitting

Zinc Oxide

True or false. The decomposition of H2SO4 on heating does not start before boiling

False

Leblanc is the primitive process for producing

soda ash

Paper grade bamboo contained ____ cellulose

5℅

Chloral is used to manufacture a. DDT b. BHC c. Parathion

DDT

Pyrex has low or high coefficient of expansion

LOW thus sudden temperature fluctuation does not affect pyrex glass

H2SO4 having SG of 1.2 at room temperature is used for

car battery solution

Catalyst in production if elemental sulfur

alumina

Catalyst in shift conversion

Nickel

True or false. All vegetablle oils except coconut oil have fatty acids having more than 16 carbon atoms

True Coconut oil contains 8-12 C, a medium chain fatty acid

DDT should not be allowed to come into contact with iron

to prevent its decomposition

DDT

Dichloro-diphenyl-trichloroethane

Metallic soap can be used as a

lubricant

Solvent extracted oil

none of these

True or false. Saponification number of an oil or fat is inversely proportional to its molecular weight

True

Kaolin is a

refractory material

Hydrogenation of vegetable oil

Exothermic Nickel catalyst

Main constituent of dolomite

MgCO3

Shift conversion

CO to CO2 by steam and presence of catalyst

Refractory bricks with high thermal conductivity is desirable when used in a

recuperator

Portland cement is mainly composed of

CaO and SiO2

℅ of benzene in benzol

True or false. Siderite is a pyride ore

False

Mannheim furnace is used to manufacture

HCl

Thermosetting materials

are cross-linked molecules

True or false. Iodine value of oil is independent of the type of oil, where it is drying or non-drying

False

Nickel is a catalyst in all the processes except a. Fischer Tropsch b. Shift conversion c. Oil hydrogenation d. Ostwald's process

Ostwald's process of HNO3 production

Purest form of iron

Wrought

Enamels

give glossy finish

Varnish does not contain

pigment

Also called PTFE

Teflon

True or false. Contact process of H2SO4 manufacturing uses nickel as catalyst

False

Molecular weight of polymers are in the range of

10² to 10^7

Manufacturing of Chlorine

Deacon

Glass wares that react with HF are made of what glass

borosilicate

What is added to 35% oleum to prevent freezing during transport in winter season?

HNO3

Most stable phosphorous

black

20℅ oleum means

20 kg SO3 and 80 kg H2SO4

Inversion of sucrose produces

glucose

Linde gas liquefaction employs

Joule-Thomson expansion

Main usage of butadiene

Manufacture of sythetic rubber

_____ addition increases depth hardness of steel

Chromium

Oleum produces fumes of

SO3

Major use of butadiene

synthetic rubber

Fatty material used in soap making

Tallow

Conditions for liquefaction

High pressure Low temperature

Color of ferrous sulphate

yellow

Sulfuric acid is used in what industry

fertilizer

Hydrazine is used in

rocket fuel

Liquid nitrogen is used as

refrigerative cooling

Acetylene + Hydrochloric acid

Vinyl Chloride

Chemical formula of oleum

H2S2O7 (SO3 +H2SO4)

Yellow glycerine is made into white using

Activated carbon

Which of the following is not an insecticide?

Hexane

Shrinkage volume does not depend upon the

sand to cement ratio

Equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to

√P

Chloroamines are used in water treatment

disinfection and taste and odor control

cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is

50%

Ore concentration by froth floatation uses ____ of ore particles as driving force

wetting characteristics

Sugar content in sugarcane on cane basis is

5 to 10% weight

True or false. Sugar content of molasses is about 10%

False, 55%

Paper that doesn't require a filler during manufacture

Blotting

S to SO2

furnace --- converter --- absorber

Catalytic oxidation of toluene produces

phenol

Zeigler process

Production of HDPE or high density polyethylene

Sea weeds is a good source of

Iodine

The yield of pulp produced from fibrous raw material by mechanical process us about

<10

Good quality of coal should have a. low fusion point of ash b. high ash content c. high S content d. None

D. None

Which of the ff processes does not produce Cl2 as a co-product during the manufacture of soda ash?

Lime-soda process

Bleaching action of bleaching powder is due to its

oxidizing properties

Resistance to fusion of the refractory under a steady rising temperature

Refractoriness

Cumene is made by

Propylene alkylation of benzene

Polymerization product of C2F4 is called PTFE

Teflon

Starting materials in production of SBR

Ethylene Ethyl Alcohol

Which of the ff is NOT an elastomer? a. Polyisoprene b. Neoprene c. Nitrile-butadiene d. None

D. None

Dacron is a ...

None of these

Rancidity of fatty oil can be reduced by its

Hydrogenation

____ of rubber decreases due to vulcanization

Tackiness

Boiling of water containing temporary hardness produces

CO2

Phenol formaldehyde employs

condensation polymerization

Bisphenol A is produced by condesation of acetone with

phenol

Kraft process of paper manufacturing, white cooking liquor consists of caustic soda

sodium SULPHIDE sodium carbonate

Substance to speed up sedimentation if sewage

Lime

Manufacture of Kraft pulp is done by

alkaline

industrial production of chloroform requires acetone and

Calcium hypochlorite

Hydrogenation of oil takes place in a

trickle bed reactor

_______ nature of hypo (sodium thiosulfate) makes it useful in photography

Complex forming

Ore of lead

Galena

Catalytic oxidation of toluene produces

Phenol

Production of alcohol from molasses is a. aerobic b. anaerobic

aerobic

Wrong statement about nitric acid

Arc process of nitric acid manufacture is more economical compared to Ostwald

Alcohol percentage from molasses

Sulphate vs sulphite process

both T and P in the former is more than that

Purest form of water

Rain water

Use of water with DO in boilers promote

corrosion

Unsaturated oils vs saturated oils

Lower MP and higher reactivity with O2

Electrodeposition of metals is never done on

Refractories

Hollander beater used during paper pulp manufacture does not facilitate the ___ of fiber

strengthening

Biochem treatment applied to sewage effluents is a

Oxidation process

A cane sugar factory having sugar production rate of 10 tons/day will produce about ____ tons of bagasse

10 tons of baggasse

Sucrose content in cane sugar may be around

95%

Hollander beater does bot accomplish

the final rolling out of paper

Very dilute solutions are used in fermentation at what temp range

30-50 °C

Major component of flint glass

Lead oxide

Gypsum is chemically

Calcium sulphate

Massecuite is

none of these

C content of pitch, residue of coal tar distillation

94%

Sodium salt of higher MW fatty acid is termed as ___ soap

soft

Synthetic glycerine is produced from

Propylene

Viscosity index improver is added to lubricant to

reduce the variation in its viscosity with temperature

Wrong statement to solvent extraction of oil

Rate of extraction decreases as the moisture of flakes increases

Polythene is a ____polymerization product

addition

Acetone is produced by catalytic dehydration of

isopropanol

Bromine content in sea water may be around

70 ppm

Percent by volume in air of Argon

0.94

Hydrogenation of oil is an exothermic or endothermic

exothermic

Concentration of sulphide ores is done by

Froth floatation

Nylon 6-6 is manufacture from

Hexamethylene diamine and adipic acid

Grignard reagent

Ethyl magnesium chloride

Process absent in glass manufacturing

sintering

Production if 1 ton of dry pulp required ____ tons of bamboo or wood

2.5

Function of gypsum addition during cement making

decrease the cement settling rate

low purity O2 is used for

chemical oxidation processes

Wrong statement pertaining to glass properties

Sharp melting points

Deaeration of water

Minimizes corrosivenesa

Aryl benzene sulphonate is a

Detergent

Adipic acid is an intermediate in the manufacture of

Nylon-66

Temperature in the calcium carbide furnace

2000-2200 °C

Vinyl chloride is produced from thermal pyrolysis of ethylene dichloride at a P and T of

A. 4 kgf/cm² 500 °C

Soap removes dirt by

None of these

Reduce hydrophilic properties of cement

Ca and Al stearate

Used as a flux in the extraction of ore from iron ore in blast furnace

Limestone

Main difference between vegetable oils and fats are in their

Physical state

Starting raw material for manufacture of maleic anhydride

Either n-butane or benzene

True or false. Presence of sodium sulphate in pulp makes pulp bleachability poor

false

Which has the lowest amount if N2?

a. Coke oven gas

Calcination of limestone is NOT done in a ___ kiln to produce lime

fixed bed

Saponification value if oil or fat is a measure of

its average molecular weight

Production of DDT's reaction temperature is maintained at

15-30 C

Sand and ___ are fused at 1300 C to produce sodium silicate

soda ash

Sucrose contains

glucose and fructose

Function of sodium thiosulphate in development of photographic film

Remove unexposed silver halide

High temp carbonization of coal takes place at

110 C

White phosphorus in stored under water

due to its low kindling temperature in dry air

Mercury electrolytic cells produces 50-70% NaOH. It's operating temp is _____

60-70 C

Vanillin is a type of

flavor

Pure rectified spirit contains

95% alcohol

BP of oxygeb

-183 °C

Mercury cells for caustic soda manufacture, compared to diaphragm cells

None of these

Builders are added to soap

cleaning power booster

H2S is scrubbed using

ethanol amine

Zeolite

naturally occuring clay which us capable of exchanging cations

Glass used in optical work

Lead glass

True or False. Transparent soap are made by cold process.

False

Glass is a

supercooled liquid

Commonly used glass

soda glass

Limestone + _____ = High Alumina Cement

Bauxite

Massacuits is a term in the

sugar industry

Corrosion inhibitors for iron and steel in aqueous solution

Chromates

LD converter is used in the production of

steel

In Solvay, the product from calciner us

ligh soda ash

Commercially ethylene is produced from naphtha by

hydrocracking

Pig iron is produced by blast furnaces in India using mostly the iron ore named

hematite

Saponification value minus acid value

ester value

Fourdrinier machine is used in manufacturing

paper

Penicillin is made using what process

aerobic batch fermentation

Nylon 66's name is due to the fact that

its average degree of polymerization of the polymer is 1966

_____of quicklime produces slaked lime

Hydration

Main product in calcium carbide-water reaction

C2H2

Which has the maximum amount of CO?

LD converter gas

Additional step in manufacture of paper from bagasse compared to that from bamboo

Depithing

% of glycerine present in spent lye obtained during soap manufacturing

Concentration of NaOH solution produced by diaphragm electrolytic cell

10%

Commercial production of vanaspati is done by ____of edible vegetable oils

Hydrogenation

Catalyst in oxidation of ethylene to produce ethylene oxide

AgO

Mixture of Cl and NaBr acts as

fire retardant

High grade pulp

Sulphate pulp

Starting material of producing butadiene in India

Ethyl alcohol

Yellow phosphorus is transported under

water

Celluloid is

cellulose nitrate

Double contact double absorption process produces

Sulfuric acid

Thermoplastic materials

None of these

CCl4 is the starting material of

production it perchloroethylene

Products of coal tar distillation

Anthracene, Cresote oil, Carbolic oil

Chrome tanning and vegetable tanning are done in

Chrome tanning - light leather Vegetable tabbing - heavy leather

Iron ore hematite is concentrated using

gravity separation

Nitrile rubber is produced from polymerization of

acrylonitrile and butadiene

Carbon disulphide is used in production of

viscose rayon

Efficient absorbent of SO3

98% H2SO4

Caprolactum/Nylon-6 is produced from

Benzene

% of uranium in carnotite ore found in Jadugoda

0.1 to 0.5

Potassium is kept and transported under

kerosene oil

Co-product during manufacture if soda by electrolysis if brine

RDX is chemically known as

Cyclo TRIMETHYELENE TRINITRAAMINE

Anion exchanger is regenerated using

NaOH

catalytic oxidation of naphthalene produces

phthalic anhydride

Parathions and Malathions are

pesticides

Ethylene glycol + dimethyl terephthalate

Dacron

Lindane

BHC containing 99% gamma-isomer

By product in Solvay process

CaCl2

Ideal pulp for manufacture of paper should have high cellulose content

Vinegar

10% OH 1% HA C. Both

Kopper-Totzek coal gasifier

can give ammonia synthesis gas

Sodium bisulphite us used for

deaeration and dechlorination of water

Flash points of most vegetable oils is about

200 °C

Dense soda ash

Na2CO3.H2O

Synthesis gas

CO + H2

Litharge

Lead oxide

Addition of chlorine in sewage treatment

grease separation

Constituents of glass

Sand Lime Soda Ash

Thorium is used

in manufacture of gas mantles

During the absorption of HCl gas in water, the gas is kept above dew point to

avoid corrosion

Electric bulbs are made of what glass

flint

Binding material in soap to improve soap texture

Borax

Washing soda

Na2CO3.10H2O

Phase of sulfur that is most stable at room temperature

Rhombic

Average S content in indian pyrites

35%

Silicon carbide is an

abrasive

Main constituent of mother liquor in salt industry

Bromine

Carborundum consists mainly of

Silicon carbide

Temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft

1000 °C

Systemic insecticides

absorbed throughout the plant

Chemical formula of BHC

C6H6Cl6

BHC is an insecticide. True or False.

True

Conversion of SO2 to SO3 in Monsanto-4 pass converter

98%

Coke oven gas mainly consist of

H2 and CH4

Main constituent of cotton seed oil

Linoleic acid

Lithopaneis

ZnS (white pigment)

True or False. Nicotine is a volatile alkaloid.

True both a and b

Economics of Solvay depends on

ammonia recovery and size of plant

Flux addition during ore smelting

remove impurities/gangue

Hydrazine is used in water treatment for

DO removal

Direct conversion of chemical energy to electrical energy is done in a

fuel cell

Nylon 6 compared to Nylon 66 is having higher a. hardness b. abrasion c. MP d. none

none of these

most reactive allotrope of phosphorus

Yellow phosphorus or white phosphorus

Resin soap is added in paper manufacture to

impart resistance to penetration by liquids

H2 is not produced commercially by

iron-steam reaction

Most detrimental impurity in feed water for HP boiler

Silica

Other term for flint glass

Lead glass

Hydrocynic acid is used as an insecticide for

citrus fruits

Enzyme that converts starch to maltose

diastase

Fats dispersed in water

Butter

Catalyst in oxidation of benzene to form maleic anhydride

Vanadium Pentoxide

Blue color is imparted to glass by addition of

CaO

Bordeaux mixture is an

inorganic fungicide

Raw material for the manufacture of viscose rayon

fine teak wood

Commercial production of Calcium carbide requires limestone and ____ as raw materials

coke

Raw materials for nitroglycerene are glycerene, nitric acid, and

sulfuric acid

Converting rubber into a thin sheet or coating it with fabric

calendering

Process conditions in production of penicillin

2 atm 25 °C

Platinum can be poisoned by the presence of

arsenic

NaCl content in sea water

25 g/L

CPI Flashcards

(286 cards)