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day 2 > CPI > Flashcards

CPI Flashcards

1
Q

Oxidation of SO2 to SO3 is favored by

A

low temperature and high pressure

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2
Q

The catalyst for the oxidation of SO2 to SO3

A

Vanadium pentoxide (V2O5)

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3
Q

Components of a gunpowder

A

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

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4
Q

Starting raw material of alum

A

Bauxite

Bauxite — Alumina — Aluminum sulfate — Alum

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5
Q

Used in food industry as leavening agent

A

Ammonium bicarbonate

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6
Q

Paper pulp produced by the Kraft/Sulfur process is

A

Strong and Fibrous

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7
Q

Claude’s process of gas liquefaction

A

adiabatic expansion against turbine

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

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8
Q

Viscose Rayon

A

regenerated cellulose acetate

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9
Q

Styrene is formed from ethyl benzene through the process of

A

Dehydrogenation

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10
Q

Production of gelatin

A

Hydrolysis of collagen

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11
Q

Sucrose content of raw juice from sugar cane

A

15-20%

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12
Q

Fusel Oil

A

A mixture of high molecular weight of alcohols

Fusel is a German word that means bad liquor

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13
Q

SBR has _ compared to natural rubber

A

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

ALL OF THE ABOVE

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14
Q

Added to decrease the coefficient of thermal expansion of glass

A

Zinc oxide (ZnO)

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15
Q

Catalyst in measuring DDT

A

Oleum

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16
Q

Salt cake is chemically represented by

A

Na2SO4

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17
Q

Sweetest sugar

A

Fructose

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18
Q

Producer gas is composed of

A

CO, CO2, N2, H2

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19
Q

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

A

Adsorbs

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20
Q

Esterification produces _____

A

Soap

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21
Q

Phenol is mainly used

A

to produce phenol formaldehyde

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22
Q

All gasification reaction are

a. exothermic
b. endothermic

A

Endothermic

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23
Q

In sulphate pulp manufacture, pressure and temperature of digestor

A

10 atm
170-180 °C

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24
Q

Polycaprolactum

A

Nylon-6

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25
Q

Mining sulfur

A

Frasch method

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26
Q

Production if Na2CO3 by ammonia soda process

A

Solvay

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27
Q

Main reducing agent during iron production from iron ore in furnace

A

CO

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28
Q

Oil preferred for paint manufacturing

A

Drying oil

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29
Q

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

A

5 atm
275°C

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30
Q

Glycerine is used in

a. Manufacturing explosive
b. Conditioning tobacco
c. Pharmaceuticals
d. All
e. None

A

All

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31
Q

Starting material in production of phenol and acetone

A

Cumene

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32
Q

High refractive index used in optical instruments

A

flint glass

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33
Q

Free alkali in a toilet soap is ___ that in laundry soap

a. less than
b. more than

A

less than

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34
Q

Concentration of H2O2 is done by

A

vacuum crystallization

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35
Q

Catalyst in fat spitting

A

Zinc Oxide

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36
Q

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

A

False

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37
Q

Leblanc is the primitive process for producing

A

soda ash

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38
Q

Paper grade bamboo contained ____ cellulose

A

5℅

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39
Q

Chloral is used to manufacture

a. DDT
b. BHC
c. Parathion

A

DDT

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40
Q

Pyrex has low or high coefficient of expansion

A

LOW thus sudden temperature fluctuation does not affect pyrex glass

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41
Q

H2SO4 having SG of 1.2 at room temperature is used for

A

car battery solution

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42
Q

Catalyst in production if elemental sulfur

A

alumina

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43
Q

Catalyst in shift conversion

A

Nickel

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44
Q

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

A

True

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

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45
Q

DDT should not be allowed to come into contact with iron

A

to prevent its decomposition

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46
Q

DDT

A

Dichloro-diphenyl-trichloroethane

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47
Q

Metallic soap can be used as a

A

lubricant

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48
Q

Solvent extracted oil

A

none of these

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49
Q

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

A

True

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50
Q

Kaolin is a

A

refractory material

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51
Q

Hydrogenation of vegetable oil

A

Exothermic
Nickel catalyst

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52
Q

Main constituent of dolomite

A

MgCO3

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53
Q

Shift conversion

A

CO to CO2 by steam and presence of catalyst

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54
Q

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

A

recuperator

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55
Q

Portland cement is mainly composed of

A

CaO and SiO2

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56
Q

℅ of benzene in benzol

A

70

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57
Q

True or false. Siderite is a pyride ore

A

False

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58
Q

Mannheim furnace is used to manufacture

A

HCl

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59
Q

Thermosetting materials

A

are cross-linked molecules

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60
Q

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

A

False

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61
Q

Nickel is a catalyst in all the processes except

a. Fischer Tropsch
b. Shift conversion
c. Oil hydrogenation
d. Ostwald’s process

A

Ostwald’s process of HNO3 production

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62
Q

Purest form of iron

A

Wrought

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63
Q

Enamels

A

give glossy finish

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64
Q

Varnish does not contain

A

pigment

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65
Q

Also called PTFE

A

Teflon

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66
Q

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

A

False

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67
Q

Molecular weight of polymers are in the range of

A

10² to 10^7

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68
Q

Manufacturing of Chlorine

A

Deacon

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69
Q

Glass wares that react with HF are made of what glass

A

borosilicate

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70
Q

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

A

HNO3

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71
Q

Most stable phosphorous

A

black

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72
Q

20℅ oleum means

A

20 kg SO3 and 80 kg H2SO4

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73
Q

Inversion of sucrose produces

A

glucose

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74
Q

Linde gas liquefaction employs

A

Joule-Thomson expansion

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75
Q

Main usage of butadiene

A

Manufacture of sythetic rubber

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76
Q

_____ addition increases depth hardness of steel

A

Chromium

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77
Q

Oleum produces fumes of

A

SO3

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78
Q

Major use of butadiene

A

synthetic rubber

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79
Q

Fatty material used in soap making

A

Tallow

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80
Q

Conditions for liquefaction

A

High pressure
Low temperature

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81
Q

Color of ferrous sulphate

A

yellow

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82
Q

Sulfuric acid is used in what industry

A

fertilizer

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83
Q

Hydrazine is used in

A

rocket fuel

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84
Q

Liquid nitrogen is used as

A

refrigerative cooling

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85
Q

Acetylene + Hydrochloric acid

A

Vinyl Chloride

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86
Q

Chemical formula of oleum

A

H2S2O7 (SO3 +H2SO4)

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87
Q

Yellow glycerine is made into white using

A

Activated carbon

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88
Q

Which of the following is not an insecticide?

A

Hexane

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89
Q

Shrinkage volume does not depend upon the

A

sand to cement ratio

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90
Q

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

A

√P

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91
Q

Chloroamines are used in water treatment

A

disinfection and taste and odor control

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92
Q

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

A

50%

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93
Q

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

A

wetting characteristics

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94
Q

Sugar content in sugarcane on cane basis is

A

5 to 10% weight

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95
Q

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

A

False, 55%

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96
Q

Paper that doesn’t require a filler during manufacture

A

Blotting

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97
Q

S to SO2

A

furnace — converter — absorber

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98
Q

Catalytic oxidation of toluene produces

A

phenol

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99
Q

Zeigler process

A

Production of HDPE or high density polyethylene

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100
Q

Sea weeds is a good source of

A

Iodine

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101
Q

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

A

<10

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102
Q

Good quality of coal should have

a. low fusion point of ash
b. high ash content
c. high S content
d. None

A

D. None

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103
Q

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

A

Lime-soda process

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104
Q

Bleaching action of bleaching powder is due to its

A

oxidizing properties

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105
Q

Resistance to fusion of the refractory under a steady rising temperature

A

Refractoriness

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106
Q

Cumene is made by

A

Propylene alkylation of benzene

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107
Q

Polymerization product of C2F4 is called PTFE

A

Teflon

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108
Q

Starting materials in production of SBR

A

Ethylene
Ethyl Alcohol

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109
Q

Which of the ff is NOT an elastomer?

a. Polyisoprene
b. Neoprene
c. Nitrile-butadiene
d. None

A

D. None

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110
Q

Dacron is a …

A

None of these

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111
Q

Rancidity of fatty oil can be reduced by its

A

Hydrogenation

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112
Q

____ of rubber decreases due to vulcanization

A

Tackiness

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113
Q

Boiling of water containing temporary hardness produces

A

CO2

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114
Q

Phenol formaldehyde employs

A

condensation polymerization

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115
Q

Bisphenol A is produced by condesation of acetone with

A

phenol

116
Q

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

A

sodium SULPHIDE
sodium carbonate

117
Q

Substance to speed up sedimentation if sewage

A

Lime

118
Q

Manufacture of Kraft pulp is done by

A

alkaline

119
Q

industrial production of chloroform requires acetone and

A

Calcium hypochlorite

120
Q

Hydrogenation of oil takes place in a

A

trickle bed reactor

121
Q

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

A

Complex forming

122
Q

Ore of lead

A

Galena

123
Q

Catalytic oxidation of toluene produces

A

Phenol

124
Q

Production of alcohol from molasses is

a. aerobic
b. anaerobic

A

aerobic

125
Q

Wrong statement about nitric acid

A

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

126
Q

Alcohol percentage from molasses

A

40

127
Q

Sulphate vs sulphite process

A

both T and P in the former is more than that

128
Q

Purest form of water

A

Rain water

129
Q

Use of water with DO in boilers promote

A

corrosion

130
Q

Unsaturated oils vs saturated oils

A

Lower MP and higher reactivity with O2

131
Q

Electrodeposition of metals is never done on

A

Refractories

132
Q

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

A

strengthening

133
Q

Biochem treatment applied to sewage effluents is a

A

Oxidation process

134
Q

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

A

10 tons of baggasse

135
Q

Sucrose content in cane sugar may be around

A

95%

136
Q

Hollander beater does bot accomplish

A

the final rolling out of paper

137
Q

Very dilute solutions are used in fermentation at what temp range

A

30-50 °C

138
Q

Major component of flint glass

A

Lead oxide

139
Q

Gypsum is chemically

A

Calcium sulphate

140
Q

Massecuite is

A

none of these

141
Q

C content of pitch, residue of coal tar distillation

A

94%

142
Q

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

A

soft

143
Q

Synthetic glycerine is produced from

A

Propylene

144
Q

Viscosity index improver is added to lubricant to

A

reduce the variation in its viscosity with temperature

145
Q

Wrong statement to solvent extraction of oil

A

Rate of extraction decreases as the moisture of flakes increases

146
Q

Polythene is a ____polymerization product

A

addition

147
Q

Acetone is produced by catalytic dehydration of

A

isopropanol

148
Q

Bromine content in sea water may be around

A

70 ppm

149
Q

Percent by volume in air of Argon

A

0.94

150
Q

Hydrogenation of oil is an

exothermic or endothermic

A

exothermic

151
Q

Concentration of sulphide ores is done by

A

Froth floatation

152
Q

Nylon 6-6 is manufacture from

A

Hexamethylene diamine and adipic acid

153
Q

Grignard reagent

A

Ethyl magnesium chloride

154
Q

Process absent in glass manufacturing

A

sintering

155
Q

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

A

2.5

156
Q

Function of gypsum addition during cement making

A

decrease the cement settling rate

157
Q

low purity O2 is used for

A

chemical oxidation processes

158
Q

Wrong statement pertaining to glass properties

A

Sharp melting points

159
Q

Deaeration of water

A

Minimizes corrosivenesa

160
Q

Aryl benzene sulphonate is a

A

Detergent

161
Q

Adipic acid is an intermediate in the manufacture of

A

Nylon-66

162
Q

Temperature in the calcium carbide furnace

A

2000-2200 °C

163
Q

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

A

A.
4 kgf/cm²
500 °C

164
Q

Soap removes dirt by

A

None of these

165
Q

Reduce hydrophilic properties of cement

A

Ca and Al stearate

166
Q

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

A

Limestone

167
Q

Main difference between vegetable oils and fats are in their

A

Physical state

168
Q

Starting raw material for manufacture of maleic anhydride

A

Either n-butane or benzene

169
Q

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

A

false

170
Q

Which has the lowest amount if N2?

A

a. Coke oven gas

171
Q

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

A

fixed bed

172
Q

Saponification value if oil or fat is a measure of

A

its average molecular weight

173
Q

Production of DDT’s reaction temperature is maintained at

A

15-30 C

174
Q

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

A

soda ash

175
Q

Sucrose contains

A

glucose and fructose

176
Q

Function of sodium thiosulphate in development of photographic film

A

Remove unexposed silver halide

177
Q

High temp carbonization of coal takes place at

A

110 C

178
Q

White phosphorus in stored under water

A

due to its low kindling temperature in dry air

179
Q

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

A

60-70 C

180
Q

Vanillin is a type of

A

flavor

181
Q

Pure rectified spirit contains

A

95% alcohol

182
Q

BP of oxygeb

A

-183 °C

183
Q

Mercury cells for caustic soda manufacture, compared to diaphragm cells

A

None of these

184
Q

Builders are added to soap

A

cleaning power booster

185
Q

H2S is scrubbed using

A

ethanol amine

186
Q

Zeolite

A

naturally occuring clay which us capable of exchanging cations

187
Q

Glass used in optical work

A

Lead glass

188
Q

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

A

False

189
Q

Glass is a

A

supercooled liquid

190
Q

Commonly used glass

A

soda glass

191
Q

Limestone + _____ = High Alumina Cement

A

Bauxite

192
Q

Massacuits is a term in the

A

sugar industry

193
Q

Corrosion inhibitors for iron and steel in aqueous solution

A

Chromates

194
Q

LD converter is used in the production of

A

steel

195
Q

In Solvay, the product from calciner us

A

ligh soda ash

196
Q

Commercially ethylene is produced from naphtha by

A

hydrocracking

197
Q

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

A

hematite

198
Q

Saponification value minus acid value

A

ester value

199
Q

Fourdrinier machine is used in manufacturing

A

paper

200
Q

Penicillin is made using what process

A

aerobic batch fermentation

201
Q

Nylon 66’s name is due to the fact that

A

its average degree of polymerization of the polymer is 1966

202
Q

_____of quicklime produces slaked lime

A

Hydration

203
Q

Main product in calcium carbide-water reaction

A

C2H2

204
Q

Which has the maximum amount of CO?

A

LD converter gas

205
Q

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

A

Depithing

206
Q

% of glycerine present in spent lye obtained during soap manufacturing

A

5%

207
Q

Concentration of NaOH solution produced by diaphragm electrolytic cell

A

10%

208
Q

Commercial production of vanaspati is done by ____of edible vegetable oils

A

Hydrogenation

209
Q

Catalyst in oxidation of ethylene to produce ethylene oxide

A

AgO

210
Q

Mixture of Cl and NaBr acts as

A

fire retardant

211
Q

High grade pulp

A

Sulphate pulp

212
Q

Starting material of producing butadiene in India

A

Ethyl alcohol

213
Q

Yellow phosphorus is transported under

A

water

214
Q

Celluloid is

A

cellulose nitrate

215
Q

Double contact double absorption process produces

A

Sulfuric acid

216
Q

Thermoplastic materials

A

None of these

217
Q

CCl4 is the starting material of

A

production it perchloroethylene

218
Q

Products of coal tar distillation

A

Anthracene, Cresote oil, Carbolic oil

219
Q

Chrome tanning and vegetable tanning are done in

A

Chrome tanning - light leather
Vegetable tabbing - heavy leather

220
Q

Iron ore hematite is concentrated using

A

gravity separation

221
Q

Nitrile rubber is produced from polymerization of

A

acrylonitrile and butadiene

222
Q

Carbon disulphide is used in production of

A

viscose rayon

223
Q

Efficient absorbent of SO3

A

98% H2SO4

224
Q

Caprolactum/Nylon-6 is produced from

A

Benzene

225
Q

% of uranium in carnotite ore found in Jadugoda

A

0.1 to 0.5

226
Q

Potassium is kept and transported under

A

kerosene oil

227
Q

Co-product during manufacture if soda by electrolysis if brine

A

H2

228
Q

RDX is chemically known as

A

Cyclo TRIMETHYELENE TRINITRAAMINE

229
Q

Anion exchanger is regenerated using

A

NaOH

230
Q

catalytic oxidation of naphthalene produces

A

phthalic anhydride

231
Q

Parathions and Malathions are

A

pesticides

232
Q

Ethylene glycol + dimethyl terephthalate

A

Dacron

233
Q

Lindane

A

BHC containing 99% gamma-isomer

234
Q

By product in Solvay process

A

CaCl2

235
Q

Ideal pulp for manufacture of paper should have high cellulose content

A
236
Q

Vinegar

A

10% OH
1% HA

C. Both

237
Q

Kopper-Totzek coal gasifier

A

can give ammonia synthesis gas

238
Q

Sodium bisulphite us used for

A

deaeration and dechlorination of water

239
Q

Flash points of most vegetable oils is about

A

200 °C

240
Q

Dense soda ash

A

Na2CO3.H2O

241
Q

Synthesis gas

A

CO + H2

242
Q

Litharge

A

Lead oxide

243
Q

Addition of chlorine in sewage treatment

A

grease separation

244
Q

Constituents of glass

A

Sand
Lime
Soda Ash

245
Q

Thorium is used

A

in manufacture of gas mantles

246
Q

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

A

avoid corrosion

247
Q

Electric bulbs are made of what glass

A

flint

248
Q

Binding material in soap to improve soap texture

A

Borax

249
Q

Washing soda

A

Na2CO3.10H2O

250
Q

Phase of sulfur that is most stable at room temperature

A

Rhombic

251
Q

Average S content in indian pyrites

A

35%

252
Q

Silicon carbide is an

A

abrasive

253
Q

Main constituent of mother liquor in salt industry

A

Bromine

254
Q

Carborundum consists mainly of

A

Silicon carbide

255
Q

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

A

1000 °C

256
Q

Systemic insecticides

A

absorbed throughout the plant

257
Q

Chemical formula of BHC

A

C6H6Cl6

258
Q

BHC is an insecticide. True or False.

A

True

259
Q

Conversion of SO2 to SO3 in Monsanto-4 pass converter

A

98%

260
Q

Coke oven gas mainly consist of

A

H2 and CH4

261
Q

Main constituent of cotton seed oil

A

Linoleic acid

262
Q

Lithopaneis

A

ZnS (white pigment)

263
Q

True or False. Nicotine is a volatile alkaloid.

A

True

both a and b

264
Q

Economics of Solvay depends on

A

ammonia recovery and size of plant

265
Q

Flux addition during ore smelting

A

remove impurities/gangue

266
Q

Hydrazine is used in water treatment for

A

DO removal

267
Q

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

A

fuel cell

268
Q

Nylon 6 compared to Nylon 66 is having higher

a. hardness
b. abrasion
c. MP
d. none

A

none of these

269
Q

most reactive allotrope of phosphorus

A

Yellow phosphorus or white phosphorus

270
Q

Resin soap is added in paper manufacture to

A

impart resistance to penetration by liquids

271
Q

H2 is not produced commercially by

A

iron-steam reaction

272
Q

Most detrimental impurity in feed water for HP boiler

A

Silica

273
Q

Other term for flint glass

A

Lead glass

274
Q

Hydrocynic acid is used as an insecticide for

A

citrus fruits

275
Q

Enzyme that converts starch to maltose

A

diastase

276
Q

Fats dispersed in water

A

Butter

277
Q

Catalyst in oxidation of benzene to form maleic anhydride

A

Vanadium Pentoxide

278
Q

Blue color is imparted to glass by addition of

A

CaO

279
Q

Bordeaux mixture is an

A

inorganic fungicide

280
Q

Raw material for the manufacture of viscose rayon

A

fine teak wood

281
Q

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

A

coke

282
Q

Raw materials for nitroglycerene are glycerene, nitric acid, and

A

sulfuric acid

283
Q

Converting rubber into a thin sheet or coating it with fabric

A

calendering

284
Q

Process conditions in production of penicillin

A

2 atm
25 °C

285
Q

Platinum can be poisoned by the presence of

A

arsenic

286
Q

NaCl content in sea water

A

25 g/L

day 2 (6 decks)

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