Competitive Chemical Process MCQs – Up To Date Chemical Engineering MCQs

Competitive Chemical Process MCQs – Up To Date 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

By practicing these MCQs of Chemical Process MCQs – Latest Competitive Chemical Engineering MCQs , an individual for exams performs better than before. This post comprising of mechanical engineering objective questions and answers related to Chemical Process Mcqs “. As wise people believe “Perfect Practice make a Man Perfect”. It is therefore practice these mcqs of mechanical engineering to approach the success. Tab this page to check “Chemical Process Mcqs” for the preparation of competitive mcqs, FPSC mcqs, PPSC mcqs, SPSC mcqs, KPPSC mcqs, AJKPSC mcqs, BPSC mcqs, NTS mcqs, PTS mcqs, OTS mcqs, Atomic Energy mcqs, Pak Army mcqs, Pak Navy mcqs, CTS mcqs, ETEA mcqs and others.

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:

Commercial production of calcium carbide requires limestone and __________________ as raw materials?

A. Soda ash
B. Sand
C. Coke
D. Fuel oil

The most stable allotropic form of phosphorous is the _________________ phosphorous?

A. Yellow
B. Black
C. White
D. Red

Type of glass used in optical work is the ___________________ glass?

A. Fibre
B. Soda-lime
C. Lead
D. Borosilicate

Titanium dioxide is a/an ___________________ colour pigment?

A. White
B. Yellow
C. Black
D. Blue

Fusel oil is a/an_________________?

A. Extract from medicinal herbs
B. Essential oil
C. Mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses)
D. None of these

Bordeaux mixture is a/an________________?

A. Insecticide
B. Inorganic fungicide
C. Fertiliser
D. Explosive

Concentration of NaOH solution produced by mercury electrolytic cell is about _______________ percent?

A. 25
B. 10
C. 50
D. 98

Solvent used for extraction of oil is_____________________?

A. Furfural
B. Methyl ethyl ketone
C. Hexane
D. None of these

______________ is an ore concentrating metallurgical process involving a chemical change?

A. Froth floatation
B. Electromagnetic separation
C. Roasting
D. None of these

Rotary kiln is not involved in the production of___________________?

A. Lime from limestone
B. Cement
C. Slaked lime from quick lime
D. None of these

In the manufacture of viscose rayon, the raw material used industrially is ____________________?

A. Bamboo
B. Eucalyptus wood
C. Bagasse
D. Fine teak wood

Starting raw material for the manufacture of alum is_________________?

A. Gypsum
B. Alumina
C. Bauxite
D. Ammonium bicarbonate

Plasticisers are added to paints to______________________?

A. Make glossy surface
B. Make it corrosion resistant
C. Give elasticity & prevent cracking of the film
D. Increase atmospheric oxidation

BHC (Benzene hexachloride) is made by the chlorination of benzene_____________________?

A. Which is an addition reaction
B. In absolute dark
C. Which is a substitution reaction
D. In presence of sunlight

The combustion reaction, C + O2 = CO2, is__________________?

A. Exothermic
B. Autocatalytic
C. Endothermic
D. None of these

___________________ iron is the purest form of iron?

A. Pig
B. Wrought
C. Cast
D. High silicon

Styrene-butadiene-rubber (SBR) as compared to natural rubber has________________?

A. Poorer resistance to oxidation
B. Poorer tensile strength
C. Greater amount of heat build-up under heavy loading
D. All A , B. and C.

Thermodynamics Mcqs

Impurities present in brine is normally removed by treatment with ?

A. Lime and soda ash
B. NH3 and CO2
C. Lime, ammonia and carbon
D. All A , B. and C.

Producer gas consists mainly of________________________?

A. CO, CO2 N2, H2
B. H2, CH4
C. CO, H2
D. C2H2, CO2, H2

Commonly used glass is known as the _______________ glass?

A. Hard
B. Flint
C. Pyrex
D. Soda

Which of the following is not a raw material used for the manufacture of ordinary glass ?

A. Iron oxide
B. Limestone
C. Soda ash
D. Silica

L.D. converter is used in the production of_________________?

A. Copper
B. Steel
C. Pig iron
D. Zinc

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

A. Steam gasification
B. Shift conversion
C. Steam reforming
D. None of these

Which of the following is not a pyrite ore ?

A. Galena
B. Celestite
C. Gypsum
D. Siderite

Saponification value/number of an oil or fat is a measure of its ___________________?

A. Insoluble fatty acid content
B. Degree of unsaturation of the fatty acids present in it
C. Average molecular weight
D. Fatty acid content

Salt cake is chemically represented by_________________?

A. Na2SO4
B. MgSO4
C. CaSO4. ½H2O
D. BaSO4

Cooking liquor in case of sulphite process is _____________________?

A. Sodium sulphite and sodium bisulphite
B. Magnesium sulphate and magnesium bicarbonate
C. Magnesium sulphite and free SO2 in acid medium
D. None of these

Raw materials used for producing ________________ cement does not contain iron oxide?

A. Slag
B. Waterproof
C. White
D. Pozzolan

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

A. Mercury electrolytic cell process
B. Diaphragm electrolytic cell process
C. Lime-soda process
D. None of these

Fermentator temperature during production of alcohol from molasses is around ______________ °C?

A. 130
B. 30
C. 5
D. 300

Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of_________________?

A. Lead
B. Arsenic
C. Carbon
D. Sulphur

Neoprene is chemically known as___________________?

A. Polyurethane
B. Styrene butadiene rubber (SBR)
C. Polybutadiene
D. Polychlorophrene

Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and___________________?

A. Sulphuric acid
B. Hydrochloric acid
C. Phosphoric acid
D. Hydrofluoric acid

Function of sodium thiosulphate (hypo) in development of photographic film/plate is to______________?

A. Remove metallic silver
B. Brighten the faint images
C. Convert silver chloride to silver
D. Remove unexposed silver halide

Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is ______________ °C?

A. 150-200
B. 60-70
C. 25
D. 250-300

Cement mainly contains_________________?

A. CaO, SiO2, Al2O3
B. Al2O3, MgO, Fe2O3
C. MgO, SiO2, K2O
D. CaO, MgO, K2O

In the Lurgi coal gasifier_________________?

A. Low carbon conversion efficiency is achieved
B. Coking coals cannot be used
C. Entrainment of solids is higher
D. Large quantity of coal can be processed

Claude process of gas liquefaction employs___________________?

A. Merely compression of gas beyond its critical pressure
B. Heat exchange with colder stream
C. Joule-Thomson expansion cooling
D. Adiabatic expansion against a piston or in a turbine

Cellulose percentage in bamboo fibre is about_________________?

A. 20
B. 10
C. 50
D. 85

Neoprene is the trade name of___________________?

A. Phenol formaldehyde
B. Polyurethane
C. Polychlorophrene
D. Styrene-butadiene rubber

Analgesic drugs are__________________?

A. Pain relievers
B. Used in the treatment of typhoid
C. Used in the treatment of T.B.
D. Antibiotics

______________ process is used for the manufacture of sodium carbonate by ammonia soda process?

A. Bosch
B. Ostwald’s
C. Solvay
D. Haber’s

Pick out the wrong statement. Iodine value of an oil or fat is________________?

A. A measure of its unsaturation
B. The number of grams of iodine taken up by 100 gm of oil or fat
C. Helpful in findings its adulteration & its suitability for making soap
D. Independent of the type of oil, whether it is drying or non-drying

Hydrogenation of edible vegetable oils_________________?

A. Increases their melting point
B. Is an exothermic reaction
C. Is done in presence of nickel catalyst
D. All A , B. and C.

Which of the following is an endothermic reaction ?

A. Absorption of SO3 in 98% H2SO4
B. Thermal dissociation of iron pyrites
C. C + H2O = CO + H2
D. Both B. and C.

Alcohol is produced by the___________________?

A. Esterification of a fat
B. Hydrolysis of an ether
C. Oxidation of an aldehyde
D. None of these

Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove____________________?

A. Turbidity
B. Colour
C. Bacteria
D. All A , B. and C.

Main constituent of dolomite is __________________?

A. K2CO3
B. MgCO3
C. CaCO3
D. Na2CO3

Nickel is not used as a catalyst in the __________________ reaction ?

A. Shift conversion
B. Steaming reforming of naphtha
C. Oil hydrogenation
D. Ammonia cracking/dissociation

Pick out the wrong statement ?

A. In nylon-6, the number 6 represents the total number of carbon atoms in the ring
B. Catalytic hydrogenation of carbon monoxide produces methyl alcohol
C. Raw materials for DDT manufacture are benzene and chlorine
D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material

Which one of the following is not likely to be a constituent of vegetable oils ?

A. Citric acid
B. Stearic acid
C. Oleic acid
D. Glycerol

Zeolite is a/an___________________?

A. Naturally occuring clay which is capable of exchanging cations
B. Catalyst used in shift conversion
C. Abrasive material
D. None of these

Polycaprolactam is commercially known as___________________?

A. Nylon-6
B. Dacron
C. Nylon-66
D. Rayon

Vanillin is a type of____________________?

A. Anti-pyretic drug
B. Dye
C. Flavour
D. Food preservative

Chemical Environmental Engineering Mcqs

Setting of plaster of Paris is accompanied with___________________?

A. Hydration
B. Hydrolysis
C. Dehydration
D. Loss of CO2

Cumene (isopropyl benzene) is made by ____________________?

A. Polymerisation of a mixture of benzene & propylene
B. Propylene alkylation of benzene
C. Oxidation of naphthalene
D. None of these

Resistance to fusion of the refractory under a steady rising temperature condition is called ____________________ ?

A. Spalling
B. Refractoriness
C. Both of the above
D. Neither of the above

_________________ is not a constituent of gun powder?

A. Carbon
B. Sulphur
C. Charcoal
D. Potassium nitrate

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of_________________?

A. Collagen
B. Molasses
C. Tannin
D. Carbohydrate

Which of the following is an organometallic compound ?

A. Zeolite
B. Tetra-ethyl lead
C. Isopropyl alcohol
D. Cumene

Essential oils are usually obtained using__________________?

A. Extractive distillation
B. Steam distillation
C. Solvent extraction
D. Leaching

All enzymes are made of______________________?

A. Carbohydrates
B. Fats
C. Proteins
D. Amino acids

Sucrose is a disaccharide consisting of____________________?

A. Glucose and galactose
B. Glucose and fructose
C. Glucose and glucose
D. Fructose and galactose

Pasteurisation of milk means______________________?

A. Inhibiting the growth of micro-organisms without killing them
B. Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics
C. Removal of fatty and albuminous substance from it
D. None of these

H2S is scrubbed from refinery gases by absorption using ________________________?

A. Chilled water
B. Ethanol amine
C. Dilute H2SO4
D. Tri-butyl phosphate

The gasification reaction represented by, C + H2O = CO + H2, is a/an _________________ reaction?

A. Catalytic
B. Endothermic
C. Exothermic
D. Autocatalytic

Coke used for the production of calcium carbide should have____________________?

A. Low ignition temperature
B. Low ash content
C. High electrical resistivity
D. All A , B. and C.

Saponification number of an oil or fat____________________?

A. Detects its adulteration
B. Is inversely proportional to its molecular weight
C. Gives an idea about its molecular weight
D. All A , B. & C.

Alcohol content in freshly prepared natural and fortified wine may be respectively around ______________ percent ?

A. 7-14 and 14-30
B. 14 – 30 and 40-50
C. 7-14 and 40-50
D. 10 – 20 and 40 – 50

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

A. Calcination
B. Roasting
C. Reduction
D. Smelting

The process involved in converting rubber into a thin sheet or coating it on fabric is called ___________________?

A. Mastication
B. Extrusion
C. Calendaring
D. Vulcanisation

Liquor poisoning generally occurs due to the presence of _________________ in it ?

A. Impurities
B. Ethyl alcohol
C. Methyl alcohol
D. Carbonic acid

Silicone is a/an ___________________?

A. Monomer
B. Inorganic polymer
C. Thermoplastic
D. None of these

Thermosetting materials ______________________?

A. Are cross-linked molecules
B. Are solvent soluble
C. Soften on application of heat
D. None of these

Roasting of metallurgical ores is done mainly to ___________________?

A. Sinter the ore
B. Dehydrate it
C. Remove CO2 & H2O
D. Remove arsenic & sulphur

Black liquor is converted into white liquor by __________________________?

A. Evaporation and burning the concentrate followed by causticisation of products
B. Selective liquid extraction
C. Multi-effect evaporation only
D. Extractive distillation

Which of the following is not an abrasive material ?

A. Bakelite
B. Corundum
C. Pumice
D. Carborundum

More than 100 percent of _________________ is present in oleum?

A. H2SO3
B. H2SO4
C. SO3
D. SO2

Co-efficient of thermal expansion of glass is decreased by the addition of _______________ during its manufacture?

A. MnO2
B. CaO
C. ZnO
D. FeS

Pick out the wrong statement ?

A. Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method
B. Digestion time for bagasse is less than that for wood base materials
C. Kraft method of pulp manufacture can process all types of fibrous raw materials
D. None of these

Pick out the true statement pertaining to water treatment ?

A. Activated carbon can be used for taste & odour control without subsequent filtration
B. Slow sand filters can remove colour completely
C. Application of activated carbon reduces the temporary hardness of water
D. Normally, the turbidity is removed by adding a coagulant prior to sedimentation

Massecuite is a terminology used in the ______________ industry ?

A. Soap
B. Oil hydrogenation
C. Paint
D. Sugar

Wood charcoal is used for decolouration of sugar, because it _______________ the coloured materials?

A. Adsorbs
B. Reduces
C. Oxidises
D. Converts

Chemical Process Mcqs

Thermal pyrolysis of ethylene dichloride produces___________________?

A. Ethanol amine
B. Vinyl chloride
C. Trichloroethylene
D. Ethylene oxide

Pick out the wrong statement?

A. Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide
B. Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate
C. Ordinary glass is represented chemically by Na2O . CaO . 6SiO2
D. Red color is imparted to glass by addition of arsenic oxide

Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is___________________?

A. 0.34
B. 0.14
C. 0.94
D. 1.4

Pick out the false statement pertaining to water treatment ?

A. Water with pH value less than 7, is acidic
B. The zeolite water softening process reduces the hardness of water by not more than 50%
C. Sodium sulphate or sodium carbonate do not cause hardness in water
D. Aeration of water is effective in CO2 removal

Pick out the wrong statement ?

A. Water gas is called blue gas because of the color of the flame, when it is burnt
B. Acetylene gas cannot be used for illumination purpose
C. Strongly caking coal should not be used in the Lurgi gasifier
D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

Diaphragm electrolytic cell as compared to mercury electrolytic cell_____________________?

A. Requires less specific power consumption for the production of chlorine
B. Produces 70% NaOH solution
C. Requires lesser investment for similar capacity
D. All A , B. and C

Concentration of sulphide ores is done usually by____________________?

A. Smelting
B. Roasting
C. Froth floatation
D. Electromagnetic separation

Bleaching of paper pulp is done with__________________?

A. Bromine
B. Activated clay
C. Chlorine or chlorine dioxide
D. Magnesium sulphite

Pick out the wrong statement ?

A. Production of cold SBR employs lower pressure as compared to that of hot SBR
B. Polymerisation temperature can modify the properties of SBR
C. Cold rubber (SBR) is superior as compared to hot rubber (SBR)
D. None of these

Which of the following processes is absent in glass manufacturing process ?

A. Sintering
B. Melting
C. Shaping or forming
D. Annealing

Pick out the wrong statement ?

A. Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98%
B. Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%
C. 75% oleum can be produced by distillation of 20% oleum
D. Contact process of sulphuric acid manufacture uses nickel as the catalyst

Pick out the wrong statement pertaining to the soap manufacture?

A. Transparent soaps are made by cold process
B. Colourless rosin is used in the manufacture of laundry soaps
C. Both laundry as well as toilet soaps are manufactured by hot process
D. Organic pigments are used as colouring materials in the soap manufacture

90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at _____________ °C ?

A. 250-280
B. 10-30
C. < 0
D. 500-600

Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have___________________?

A. Low co-efficient of thermal expansion
B. Sharp melting points
C. High electrical insulation properties
D. Compressive strength much greater than their tensile strengths

Pick out the wrong statement?

A. Mordant dyes are applied mainly to wools
B. Basic dyes (e.g. amino derivatives) are applied mostly to paper
C. Azoic dyes are mostly applied on cotton fabrics
D. None of these

Bromine is used in the preparation of___________________?

A. Fire proofing agents
B. Fire extinguishing compounds
C. Dyes and antiknock compounds
D. All A , B. and C.

Pick out the wrong statement?

A. Portland cement is made employing wet process
B. Dry process is used for the manufacture of cement, when the raw material is blast furnace slag
C. Gypsum is added to Portland cement to lengthen its setting time
D. None of these

Competitive Chemical Process MCQs – Up To Date Chemical Engineering MCQs

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