Competitive Chemical Process MCQs – Most Latest Chemical Engineering MCQs
This post is comprising of latest ” Chemical Process MCQs – Latest Competitive Chemical Engineering MCQs “. Here you’ll get latest chemical engineering mcqs for written test, interview with answers. If you want to improve your knowledge regarding chemical engineering then read these mcqs of Design of Steel Structures.
Latest Chemical Engineering MCQs
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Latest Chemical Process Mcqs
The most occurred mcqs of Chemical Process in past papers. Past papers of Chemical Process Mcqs. Past papers of Chemical Process Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Chemical Process Mcqs. The Important series of Chemical Process Mcqs are given below:
Calcination of gypsum produces__________________?
A. Plaster of Paris
B. Nitre cake
C. Salt cake
D. Lime
Styrene is produced from ethyl benzene by the process of__________________?
A. Dehydrogenation
B. Alkylation
C. Oxidation
D. Dehydration
Conversion of SO2 to SO3 in Monsanto 4-pass converter is about ____________________ percent?
A. 90
B. 80
C. 98
D. 100
Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at __________________?
A. 100 atm & 500°C
B. 5 atm & 275°C
C. 1 atm & 100°C
D. 50 atm & 1000°C
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the__________________?
A. Dibasic acid and the ring
B. Diamine and the ring
C. Diamine and the dibasic acid
D. None of these
Alum is commercially produced from___________________?
A. Feldspar
B. Gypsum
C. Galena
D. Bauxite
The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by_________________?
A. Electrolytic oxidation
B. Electrolytic reduction
C. Electrolysis
D. None of these
A ‘unit process’ is exemplified by the___________________?
A. Absorption
B. Hydrogenation of oils
C. Distillation
D. Humidification
Sodium carbonate (soda ash) is not used in the manufacture of___________________?
A. Sugar
B. Fire extinguishers
C. Baking powder
D. Detergents
Chemical name of ‘alum’ is__________________?
A. Aluminium chloride
B. Aluminium sulphate
C. Barium sulphate
D. Calcium sulphate
The ideal pulp for the manufacture of paper should have high ____________________ content?
A. Cellulose
B. Lignin
C. Both of the above
D. None of the above
Polythene is a/an ______________ polymerisation product?
A. Addition
B. Thermosetting
C. Condensation
D. None of these
________________ is the major constituent of the Portland cement?
A. Calcium oxide
B. Calcium carbonate
C. Tricalcium silicate
D. Calcium sulphate
Aryl benzene sulphonate (ABS) is a____________________?
A. Detergent
B. Starting material for the synthesis of glycerine
C. Plasticiser for unsaturated polyester
D. Coating ingredient for photographic film
The major constituents of glass are____________________?
A. Silica, alumina and clay
B. Sand, lime and soda ash
C. Lime, clay and soda ash
D. Silica, alumina and soda ash
Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the_______________?
A. Synthesis of oleum
B. Car battery solution
C. Fertiliser manufacture
D. Water treatment
Production of alcohol by fermentation of molasses is a/an _____________ process?
A. Endothermic
B. Aerobic
C. Anaerobic
D. Both B. and C.
Which of the following is not a food additive ?
A. Invertage
B. Citric acid
C. Benzoyl peroxide
D. Ammonium chloride
During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to__________________?
A. Reduce the cooling water circulation rate
B. Avoid corrosion
C. Increase the rate of absorption
D. None of these
Which form of sulphur is the most stable at room temperature ?
A. Monoclinic
B. Plastic
C. Rhombic
D. Flowers of sulphur
Glycerine is not used in the____________________?
A. Manufacture of pharmaceuticals
B. Conditioning and humidification of tobacco
C. Manufacture of explosive
D. None of these
Fertilizer Technology Mcqs
High acid value of an oil or fat is an indication of ____________________?
A. Storage under improper conditions
B. Its smaller molecular weight
C. Absence of unsaturation
D. None of these
Brackish water which contains mostly dissolved salt, can be purified by the __________________ process?
A. Reverse osmosis
B. Lime soda
C. Sand filter
D. Permutit
Dacron is a/an _________________?
A. Polyester
B. Polyamide
C. Unsaturated polyester
D. Inorganic polymer
Litharge is________________?
A. Lead oxide
B. Zinc sulphide
C. Zinc oxide
D. Cellulosic photographic material
Comparing sulphate process with sulphite process, we find that ______________ in the later ?
A. Temperature is more in the former whereas pressure is more
B. Both temperature & pressure in the former is more than that
C. Both temperature & pressure in the former is less than that
D. Pressure is more in the former whereas temperature is less
Coal tar is used as a___________________?
A. Fuel in rotary kiln
B. Binding material for coal briquettes
C. Binder in making carbon electrodes
D. All A , B. and C.
With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide________________?
A. Increases linearly
B. Increases
C. Decreases
D. Decreases linearly
Trinitrotoluene (TNT), an explosive, is made by the nitration of ____________________?
A. Nitrotoluene
B. Toluene
C. Nitrobenzene
D. Benzene
_____________ is used as a catalyst in fat splitting ?
A. ZnO
B. V2O5
C. Ni
D. FeO
In the production of soda ash by Solvay process, the by-product is____________________?
A. CaCl2
B. NH3
C. NH4Cl
D. NaOH
Acetone is produced by catalytic dehydrogenation of_________________?
A. Naphthalene
B. Phenol
C. Isopropanol
D. Ethyl benzene
______________ is produced using molasses as the starting raw material ?
A. Benzol
B. Ethyl alcohol
C. Methyl alcohol
D. Dimethyl ether
How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln ?
A. 750°C
B. 500°C
C. 1000°C
D. 1500°C
Vulcanisation of rubber____________________?
A. Increases its ozone & oxygen reactivity
B. Decreases its tensile strength
C. Increases its oil & solvent resistance
D. Converts its plasticity into elasticity
Hydrazine is largely used____________________?
A. In photographic industry
B. As a starting material for ‘hypo’
C. As rocket fuel
D. In printing industry
Chemical Process Mcqs
Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction__________________?
A. Increases considerably with the rise of temperature
B. Increases with the increasing flake size keeping the flake thickness constant
C. Decreases with decrease of thickness of the flakes
D. Decreases as the moisture content of flakes increases
Sodium salt of higher molecular weight fatty acid is termed as the ______________________ soap?
A. Metallic
B. Soft
C. Hard
D. Lubricating
Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement ?
A. Stearic acid
B. Xanthates
C. Calcium & aluminium stearate
D. Formic acid
The product obtained on mixing calcium oxide with water is called __________________?
A. Milk of lime
B. Slaked lime
C. Quicklime
D. None of these
Zeolite used in water softening process (cation exchange) is regenerated by washing with___________________?
A. Brine
B. Sodium bisulphite
C. Chloramines
D. Liquid chlorines
The purpose of adding Na2CO3 to water of low alkalinity is to__________________?
A. Permit the use of alum as a coagulant
B. Facilitate easy regeneration of zeolite
C. Increase the softening capacity of zeolite
D. All A , B. and C.
Main constituents of Portland cement are calcium aluminate and__________________?
A. Sodium silicate
B. Silicates
C. Gypsum
D. Carbonates
Glauber’s salt is chemically represented by____________________?
A. Na2SO4.10H2O
B. CaSO4.H2O
C. CaCl(OCl)
D. (NH4)2SO4
Which of the following is used as a binding material in soap to improve soap texture ?
A. Benzyl acetate
B. Borax
C. Rosin
D. Sodium carbonate
Heating of _______________ to 120°C, produces plaster of paris ?
A. Calcium silicate
B. Gypsum
C. Blue vitriol
D. Calcium sulphate
Bromine content in sea water may be around _________________ ppm?
A. 70
B. 1875
C. 640
D. 2500
Margarine is a/an____________________?
A. Fat
B. Explosive
C. Plasticiser Explosive
D. Rocket propellant
Cumene is the starting material for the production of________________?
A. Isoprene
B. Phenol and acetone
C. Benzoic acid
D. Styrene
Liquefaction of gases cannot be done by___________________?
A. Adiabatic expansion against a piston or in a turbine
B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
C. Merely compressing it beyond critical pressure
D. Exchange of heat with colder stream
Alcohol percentage in molasses may be around _____________________?
A. 70
B. 40
C. 10
D. 85
Adipic acid is an intermediate in the manufacture of________________?
A. Polystyrene
B. Nylon-66
C. Perspex
D. Bakelite
The process used for the manufacture of ethyl alcohol from molasses is_________________?
A. Dehydration
B. Distillation
C. Dehydrogenation
D. None of these
Presence of sodium tripolyphosphate (an additive) in synthetic detergent___________________?
A. Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)
B. Does not allow redeposition of dirt on the cleaned surface
C. Inhibits its corrosive effects
D. None of these
Ultimate analysis of coal determines its _______________________ content?
A. Carbon, ash, sulphur & nitrogen
B. Carbon, hydrogen, nitrogen & sulphur
C. Carbon, sulphur, volatile matter & ash
D. Carbon, volatile matter, ash & moisture
Poly Tetrafluoroethylene (P.T.F.E.) is known as___________________?
A. Celluloid
B. Teflon
C. Bakelite
D. Dacron
Fuels And Combustion Mcqs
Average sulphur content in Indian pyrites is about _________________ percent?
A. 55
B. 35
C. 15
D. 70
Triple superphosphate is manufactured by reacting ____________________?
A. Phosphate rock with phosphoric acid
B. Phosphate rock with nitric acid
C. Phosphate rock with sulphuric acid
D. Ammonium phosphate with phosphoric acid
Gun powder uses_____________________?
A. Charcoal
B. Sulphur
C. Potassium nitrate
D. All A , B, & C.
In industrial nomenclature, alcohol means_________________?
A. Propyl alcohol
B. Butyl alcohol
C. Ethanol
D. Methyl alcohol
During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as_______________________?
A. It decomposes on further increasing the temperature
B. Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)
C. It is very corrosive at elevated temperature
D. None of these
Phenol formaldehyde resin is used as an adhesive in making__________________?
A. Laminates
B. Furniture
C. Card boxes
D. Books
Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about ___________________?
A. 0.1 to 0.5
B. 5 to 10
C. 1 to 5
D. 15 to 25
Phthalic anhydride is produced by the oxidation of _________________?
A. Toluene
B. Benzene
C. Naphthalene
D. Aniline
Chemical name of Grignard reagent is__________________?
A. Sodium sulphite
B. Ethyl magnesium chloride
C. Sodium thiosulphate
D. Sodium bicarbonate
Systemic insecticides________________?
A. Are absorbed throughout the plant
B. Kill insects following external bodily contact
C. Emit poisonous vapour
D. Are stomach poisons
Most commonly used rubber vulcanising agent is___________________?
A. Sulphur
B. Platinum
C. Bromine
D. Alumina
Yeast is used in the manufacture of ____________________?
A. Antibiotics
B. Penicillin
C. Wine
D. Pasteurised milk
Carbon content of pitch (residue of coal tar distillation) is around ________________ percent?
A. 55
B. 70
C. 80
D. 94
Soaps remove dirt by ____________________?
A. Decreasing wettability
B. Increasing the surface tension
C. Supplying hydrophilic group
D. None of these