MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Chemical Engineering
Chemical Process
Quiz 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Q.1
Zeigler process
Produces high density polyethylene
Produces low density polyethylene
Uses no catalyst
Employs very high pressure
Q.2
Pick out the wrong statement.
Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate
Glass is decolorised during its manufac-ture by adding antimony oxide, mangnese dioxide or arsenic oxide
Ordinary glass is represented chemically by Na₂O . CaO . 6SiO₂
Red color is imparted to glass by addition of arsenic oxide
Q.3
Hydrogenation of oil/fat does not
Improve its resistance to rancid oxidation
Raise its melting point
Remove double bonds
None of these
Q.4
Builders are added in soap to act as
Cleaning power booster
Anti-redeposition agent
Corrosion inhibitor
Fabric brightener
Q.5
__________ is used as a catalyst in fat splitting.
ZnO
Ni
V₂O₅
FeO
Q.6
Sucrose is a disaccharide consisting of
Glucose and glucose
Glucose and fructose
Glucose and galactose
Fructose and galactose
Q.7
__________ is produced by the dehydrogenation of ethyl benzene.
Styrene
Ethyl alcohol
Cumene
Phenol
Q.8
Fluorescent dyes are added in detergents to
Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics
Attain distinctiveness from other brands
Act as tarnish inhibitor for metals like German silver
None of these
Q.9
Alkylbenzene sulfonate (ABS) is a
Detergent
Rubber
Pesticide
Polyester
Q.10
Wet chlorine gas produced during electrolysis of brine is dehydrated by
Spraying 66° Be H₂SO₄ counter current to the flow of the gas
Passing it through a bed of diatomaceous earth
Passing it through a bed of silica gel
None of these
Q.11
The catalyst used in shift converter is
Nickel
Vanadium
Silica gel
Alumina
Q.12
__________ is an ore concentrating metallurgical process involving a chemical change.
Electromagnetic separation
Froth floatation
Roasting
None of these
Q.13
Hydrodenation of vegetable oils is a/an __________ reaction.
Endothermic
Autocatalytic
Exothermic
Homogenous
Q.14
Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.
75
< 10
> 30
50
Q.15
Average sulphur content in Indian pyrites is about __________ percent.
15
35
55
70
Q.16
Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.
15-30
90-100
250-300
<0
Q.17
Pick out the wrong statement.
Kraft method of pulp manufacture can process all types of fibrous raw materials
Digestion time for bagasse is less than that for wood base materials
Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method
None of these
Q.18
Phthalic anhydride is produced by the oxidation of
Naphthalene
Benzene
Toluene
Aniline
Q.19
__________ process is used for producing soda ash.
Chamber
Chance
Tromp
Solvay
Q.20
Fat dispersed in water is exemplified by
Colloids
Gel
Butter
Emulsion
Q.21
Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the
Fertiliser manufacture
Car battery solution
Synthesis of oleum
Water treatment
Q.22
Shaving soaps are
Soft potassium soaps (potassium salt of fatty acid) with free stearic acid to give lather a lasting property
Metalic soaps compounded with frothing agents
High free alkali soaps having excess of cane sugar and alcohol
None of these
Q.23
Adipic acid is an intermediate in the manufacture of
Perspex
Nylon-66
Polystyrene
Bakelite
Q.24
Glycerine is recovered from lye by
Evaporation followed by vacuum distillation
Liquid extraction technique
Extractive distillation technique
None of these
Q.25
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
Teflon
Bakelite
Polyester
Nylon-66
Q.26
Conversion of CO to CO₂ by steam in presence of a catalyst is called
Steam reforming
Shift conversion
Steam gasification
None of these
Q.27
Proximate analysis of coal determines its __________ content.
Moisture, ash, sulphur & volatile matter
Moisture & volatile matter
Moisture, sulphur, nitrogen & fixed carbon
None of these
Q.28
Ultimate analysis of coal determines its __________ content.
Carbon, hydrogen, nitrogen & sulphur
Carbon, ash, sulphur & nitrogen
Carbon, sulphur, volatile matter & ash
Carbon, volatile matter, ash & moisture
Q.29
A substance produced by a living organism and capable of anti-microbial activity is called a/an
Antibiotic
Antiseptic
Disinfectant
None of these
Q.30
__________ are added in lacquers to remove film brittleness and to improve adhereness.
Film forming materials
Plasticisers
Diluents
Solvents
Q.31
Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
Reverse osmosis
Sand filter
Lime soda
Permutit
Q.32
Producer gas consists mainly of
CO, CO₂ N₂, H₂
CO, H₂
H₂, CH₄
C₂H₂, CO₂, H₂
Q.33
Plasticisers are added to synthetic plastics to
Impart flexibility
Improve workability during fabrication
Develop new improved properties not present in the original resins
All of the above
Q.34
Main constituent of dolomite is
CaCO₃
MgCO₃
K₂CO₃
Na₂CO₃
Q.35
Stereospecific agents are exemplified by
Radiation
Supported metal oxide catalysts
Ziegler catalysts
All of the above
Q.36
High purity nitrogen is used in
Making protective gas (95% N₂ + 5% H₂) for annealing of cold rolled steel strip coils
Fire fighting purposes
Both A & B
Neither A nor B
Q.37
Which of the following impurities in feed water for high pressure boiler is the most detrimental?
Silica
Dissolved oxygen
Suspended salt
Dissolved salt
Q.38
The major constituents of glass are
Lime, clay and soda ash
Sand, lime and soda ash
Silica, alumina and clay
Silica, alumina and soda ash
Q.39
Bakelite is chemically known as
Polyvinyl chloride (PVC)
Polybutadiene
Phenol formaldehyde
Polyurathane
Q.40
__________ nature of hypo (sodium thiosulphate) makes it useful in photography.
Oxidising
Reducing
Complex forming
Photochemical
Q.41
Essential oils are usually obtained using
Steam distillation
Extractive distillation
Solvent extraction
Leaching
Q.42
Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
Brighten the faint images
Remove metallic silver
Convert silver chloride to silver
Remove unexposed silver halide
Q.43
Liquor poisoning generally occurs due to the presence of __________ in it.
Ethyl alcohol
Impurities
Methyl alcohol
Carbonic acid
Q.44
Sulphur removal by heating of pyrite ore in presence of air is called its
Reduction
Roasting
Calcination
Smelting
Q.45
The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
Electrolysis
Electrolytic reduction
Electrolytic oxidation
None of these
Q.46
Reaction of calcium carbide with water produces a gas, which is used
As an illuminant
For metal cutting/welding
Both A & B
Neither A nor B
Q.47
Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of
Callagen
Tannin
Molasses
Carbohydrate
Q.48
Contact process of sulphuric acid manufacture
Yields acid of higher concentration than chamber process
Yields acids of lower concentration than chamber process
Is obsolete
Eliminates absorber
Q.49
Catalytic oxidation of toluene produces
Styrene
Phenol
Benzene
Tri-nitro-toluene
Q.50
Which of the following processes can remove both temporary as well as permanent hardness of water?
Filtration
Boiling
Distillation
None of these
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page