Latest Chemical Process MCQs – Competitive Chemical Engineering MCQs

Latest Chemical Process MCQs – Competitive 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:

Shaving soaps are____________________?

A. Soft potassium soaps (potassium salt of fatty acid) with free Stearic acid to give lather alasting property
B. High free alkali soaps having excess of cane sugar and alcohol
C. Metallic soaps compounded with frothing agents
D. None of these

Yellow phosphorus is transported under____________________?

A. Nitrogen
B. Water
C. Air
D. Helium

Which of the following is an explosive ?

A. Cellulose nitrate
B. Trinitrotoluene (TNT)
C. Nitro-glycerine
D. All A , B., and C.

Low temperature carbonisation of coal takes place at _______________ °C ?

A. 1100
B. 300
C. 700
D. 900

Which of the following is not a product of coal tar distillation ?

A. Creosote oil
B. Anthracene
C. Carbolic oil
D. None of these

Which of the following is not present in bagasse fibre ?

A. Lignin
B. Cellulose
C. Pentogens
D. None of these

Nitrile rubber is produced by the polymerisation of__________________?

A. Acrylonitrile and butadiene
B. Isobutylene and isoprene
C. Acrylonitrile and styrene
D. None of these

Production of one ton of cement requires about _______________ tons of limestone ?

A. 2.2
B. 1.2
C. 0.6
D. 3.8

Blue colour is imparted to glass by the addition of__________________?

A. PbO
B. FeSO4
C. CaO

Phenol formaldehyde____________________?

A. Is a monomer
B. Employs condensation polymerisation
C. Employs addition polymerisation
D. Is an abrasive material

Lithophane is ___________________?

A. White lead
B. Explosive
C. Filter aid
D. ZnS (white pigment)

Presence of carbonaceous matter in the sewage____________________?

A. Increases the quantity of chlorine used for its purification
B. Reduces sulphate ions to sulphides causing obnoxious smell
C. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures
D. All A, B. and C.

Dechlorination of treated water is necessary to __________________?

A. Reduce the bacterial load on filter
B. Remove residual turbidity
C. Control taste and odour
D. Remove chlorinous taste

______________________ of quicklime produces slaked lime ?

A. Hydration
B. Hydrogenation
C. Dehydration
D. None of these

An oil is converted into fat by its___________________?

A. Hydrogenation
B. Hydrocracking
C. Hydrolysis
D. Hydration

Economics of ‘Solvay Process’ depends upon the efficiency of __________________?

A. Ammonia recovery
B. Carbonating tower
C. Ammonia recovery and size of the plant
D. Ammoniation of salt solution

At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system) ?

A. P
B. √P
C. 1/P
D. P2

Extraction of _________________ employs an electrolytic process ?

A. Aluminium
B. Copper
C. Silver
D. All A, B. and C

Baking soda is chemically represented by__________________?

A. Na2CO3.H2O
C. Na2CO3
D. Na2CO3.10H2O

Inversion of sucrose produces_____________________?

A. Fructose
B. Glucose
C. Both of the above
D. Neither of the above

Phenolic antiseptics are added in the __________________ soap?

A. Metallic
B. Medicated
C. Shaving
D. Transparent

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?

A. 4000
B. 1600
C. 800
D. 8500

Chemical Environmental Engineering Mcqs

Soap cannot be used with hard water, because _________________?

A. They attract back the removed dirt
B. They form insoluble calcium soaps which precipitate
C. Hard water contains sulphate
D. None of these

Carborundum consists mainly of_________________?

A. Boron carbide
B. Silicon carbide
C. Bauxite
D. Calcium carbide

Carboxymethyl cellulose (CMC) is added in detergents to_________________?

A. Prevent redeposition of soil on cleaned surface
B. Inhibit corrosion in washing machines made of aluminium
C. Act as optical brightening agent
D. None of these

Styrene (a monomer for the production of polystyrene) is commercially produced by ____________________?

A. Catalytic dehydrogenation of ethyl benzene
B. Reacting ethylene oxide with acetaldehyde
C. Dehydration of ethyl alcohol followed by hydrogenation
D. Fermentation of starch

Reaction of calcium carbide with water produces a gas, which is used_________________?

A. For metal cutting/welding
B. As an illuminant
C. Both A. & B.
D. Neither A. nor B.

In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed ?

A. Furnace → converter → absorber
B. Furnace → converter → evaporator
C. Furnace → evaporator → absorber
D. Converter → furnace → absorber

Acrylonitrile is mainly used in the _____________ industry?

A. Printing
B. Polymer
C. Dyeing
D. Photographic

SO2 is bubbled through hot sugar cane juice to_______________?

A. Act as an acidifying agent
B. Increase the crystal size
C. Increase the amount of molasses
D. Increase its concentration

Maleic anhydride is produced by catalytic oxidation of____________________?

A. Toluene
B. Naphthalene
C. Ethyl alcohol
D. Benzene

Which one of the following is not an elastomer ?

A. Neoprene
B. Polyisoprene
C. Nitrile-butadiene
D. None of these

Naphthols are derivatives of________________?

A. Phenol
B. Naphthalene
C. Methyl amine
D. Xylene

In the Solvay process, the product from the calciner is___________________?

A. Light soda ash
B. Sodium bicarbonate
C. Dense soda ash
D. Dehydrated soda ash

Fermentation is adversely affected by the____________________?

A. Absence of air
B. Presence of air
C. High concentration
D. Presence of ammonium salts

Penicillin is made employing _______________ fermentation process?

A. Anaerobic batch
B. Aerobic batch
C. Continuous
D. None of these

20% oleum means that in 100 kg oleum, there are 20 kg of_____________________?

A. SO3 and 80kg of H2SO4
B. SO3 for each 100 kg of H2SO4
C. H2SO4 and 80kg of SO3
D. None of these

Nicotine is___________________?

A. Obtained by treating by-products of the tobacco processing industry
B. A volatile alkaloid
C. Both A. and B.
D. Neither A. nor B.

CO & H2 are the constituents of___________________?

A. Water gas
B. Producer gas
C. Coke oven gas
D. All A., B. and C.

Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is ______________ percent?

A. 80
B. 50
C. 10
D. 95

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

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

Thermodynamics Mcqs

In an integrated steel plant, NH3 present in coke oven gas is normally recovered as_________________?

A. (NH4)2SO4
B. (NH4)2 NO3
C. NH4Cl
D. Liquid NH3

Chemical formula of BHC, which is an insecticide is__________________?

A. C6H5Cl
B. C6Cl6
C. C6H6Cl6
D. C6H4Cl2

Nylon-6 as compared to Nylon-66 is having higher___________________?

A. Abrasion/resistance
B. Hardness
C. Melting point
D. None of these

Sucrose is a__________________?

A. Polysaccharide
B. Disaccharide
C. Monosaccharide
D. None of these

A mixture of chlorine & sodium bromide acts as a/an_________________?

A. Analgesic drug
B. Insecticides
C. Fire retardant
D. Hydrogenation catalyst

_________________ is produced using Polycondensation Reaction?

A. Poly vinyl chloride
B. Phenol formaldehyde
C. Polythene
D. None of these

Penicillin, an antibiotic drug was discovered by__________________?

A. Alexander
B. Doctor Zhivago
C. Flaming
D. None of these

Which of the following impurities in feed water for high pressure boiler is the most detrimental ?

A. Silica
B. Suspended salt
C. Dissolved oxygen
D. Dissolved salt

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to_________________?

A. Adjust the pH of the syrup
B. Remove the coloring matter from the syrup
C. Improve the rate of crystallisation of sugar
D. Reduce the viscosity of the syrup

Plasticisers are added to synthetic plastics to____________________?

A. Improve workability during fabrication
B. Impart flexibility
C. Develop new improved properties not present in the original resins
D. All A, B. and C.

Celluloid is chemically___________________?

A. Regenerated cellulose
B. Cellulose acetate
C. Cellulose nitrate
D. Cellulose acetate butyrate

Permanent hardness of water can be removed by___________________?

A. Adding Ca(OH)2
B. Boiling
C. Boiling it with Na2CO3
D. None of these

Viscose rayon is__________________?

A. Regenerated cellulose nitrate
B. Cellulose nitrate
C. Regenerated cellulose acetate
D. None of these

Nitric acid is not used in the manufacture of______________________?

A. Detergents
B. Aqua regia
C. Fertilisers
D. Explosives

Sea water contains about ______________________ ppm of bromine ?

A. 500
B. 70
C. 5
D. 1700

Teflon is___________________?

A. An inorganic polymer
B. Phenol formaldehyde
C. Poly tetra-fluoro-ethylene (P.T.F.E.)
D. A monomer

In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because___________________?

A. The purity of acid is affected
B. Water forms an acid mist, which is difficult to absorb
C. SO3 gas is sparingly soluble in water
D. Scale formation in the absorber is to be avoided

Carbon disulphide is mainly used in the production of______________________?

A. Viscose rayon
B. Paints
C. Plasticiser for unsaturated polyester
D. Corundum

Penicillin is separated from fermented broth by ____________________?

A. Extraction with amyl or butyl acetate
B. Evaporator in calandria
C. Ternary Azeotropic distillation
D. Extractive distillation

Hydrocyanic acid (HCN) is used as an insecticide for____________________?

A. Controlling timber degradation by ants
B. Potato beetle
C. Controlling poultry lice
D. Citrus fruits

Catalytic oxidation of toluene produces____________________?

A. Benzene
B. Phenol
C. Styrene
D. Tri-nitro-toluene

Favourable conditions for the liquefaction of gases in general are _____________________?

A. High pressure & low temperature
B. High pressure & high temperature
C. Low pressure & high temperature
D. Low pressure & low temperature

Contact process of sulphuric acid manufacture ____________________?

A. Yields acid of higher concentration than chamber process
B. Is obsolete
C. Yields acids of lower concentration than chamber process
D. Eliminates absorber

Chemical formula of oleum is_________________?

A. H2SO4
B. H2SO3
C. H2S2O7
D. H2SO7

What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell ?

A. Cl2 & H2
B. Cl2 & Na
C. O2 & H2
D. Cl2, H2 & NaOH solution

Phenol formaldehyde is produced by condensation polymerisation. It is also known as_____________________?

A. Polyester
B. Bakelite
C. Teflon
D. Nylon-66

Which of the following processes can remove both temporary as well as permanent hardness of water ?

A. Boiling
B. Filtration
C. Distillation
D. None of these

Widely used method for the conditioning of boiler feed water is the ___________________?

A. Coagulation
B. Cold lime process
C. Hot-lime soda process
D. Sequestration

Shrinkage volume in cement setting does not depend upon the _____________________?

A. Sand to cement ratio
B. Drying period
C. Ambient temperature fluctuation
D. Water to cement ratio

Sizing material is incorporated in paper to___________________?

A. Impart resistance to penetration by liquids
B. Increase its flexibility & opacity
C. Increase its thickness
D. Increase its brightness

Hydrolysis of sugar is called____________________?

A. Esterification
B. Inversion
C. Hydration
D. None of these

Commercially ethylene is produced from naphtha by ______________________?

A. Catalytic dehydrogenation
B. Catalytic cracking
C. Pyrolysis
D. Hydrocracking

Refractory Technology Mcqs

Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?

A. Arsenic
B. Chromium
C. Copper
D. Manganese

Yellow glycerine is made into white, using____________________?

A. Activated carbon
B. Bauxite
C. Diatomaceous earth
D. Bentonite

Flux addition during smelting of ore is done to___________________?

A. Remove impurities/gangue
B. Accelerate reduction of ore
C. Enhance rate of reaction
D. Separate slag from metal

The manufacture of Kraft pulp is done by a/an _________________ process?

A. Alkaline
B. Neutral
C. Acidic
D. None of these

The most reactive allotropic form of phosphorus is __________________ phosphorus?

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

Industrial production of chloroform requires acetone and_____________________?

A. Chlorine
B. Calcium hypochlorite
C. Phosgene
D. Ammonium chloride

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an ______________ detergent ?

A. Amphoteric
B. Anionic
C. Cationic
D. Semi polar

______________ Nature of hypo (sodium thiosulphate) makes it useful in photography ?

A. Reducing
B. Oxidising
C. Complex forming
D. Photochemical

Starting material for the production of styrene butadiene rubber (SBR) is________________?

A. Ethylene
B. Ethyl alcohol
C. Both A. & B.
D. Neither A. nor B.

Major component of flint glass is_____________________?

A. Lead oxide
B. Alumina
C. Silica
D. Soda

Cation exchanger is regenerated usually with_________________________?

A. Hydrazine
B. H2SO4
D. Alum solution

Molecular weight of plastics ranges from ______________________?

A. 500 to 5000
B. 20000 to 250000
C. 5000 to 10000
D. 106 to 109

Which of the following is not an insecticide ?

A. Nicotine
B. Hydrocyanic acid
C. Sodium fluoride
D. Hexane

Catalyst used in the oxidation of benzene to produce Maleic anhydride is ______________________?

A. V2O5
B. Ni
C. Pt
D. Cr

Poly Vinyl Chloride (P.V.C.) is a ______________ material ?

A. Fibrous
B. Thermoplastic
C. Thermosetting
D. Chemically active

_______________ is used as a flux in the smelting of copper ore like chalcopyrite ?

A. Lime powder
B. Coke breeze
C. Silica/quartz
D. Dolomite

Glauber’s salt is chemically ?

A. Potassium sulphate
B. Calcium sulphate
C. Potassium chlorate
D. None of these

Sulphuric acid completely saturated with sulphur trioxide is called_________________?

A. Concentrated sulphuric acid
B. Sulphurous acid
C. Oleum
D. Dilute sulphuric acid

Commercial production of Vanaspati is done by _______________ of edible vegetable oils ?

A. Hydrogenation
B. Hydrolysis
C. Oxidation
D. Hydrocracking

Which of the following is an ore of iron ?

A. Chalcopyrite
B. Galena
C. Hematite
D. Bauxite

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of ____________________?

A. Ammonium sulphate
B. Sulphuric acid
C. Nitric acid
D. Hydrochloric acid

Naphthalene is removed from coke oven gas by ________________________?

A. Absorbing in ethanolamine
B. Adsorbing on palladium
C. Scrubbing with wash oil
D. Passing it through electrostatic precipitator

Catalyst used during the manufacture of ‘Vanaspati Ghee’ is ___________________?

A. Platinum
B. Nickel
C. Zinc
D. Copper

Enzymes are_________________?

A. Derived from living organisms
B. Proteins with high molecular weight (around 10,000)
C. Catalyst for temperature sensitive reactions
D. All A, B. and C.

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda________________?

A. Sodium sulphide & sodium carbonate
B. Sodium sulphite & sodium sulphide
C. Sodium sulphite & sodium carbonate
D. None of these

Chemical formula of ‘salt cake’ is____________________?

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

Linde process of gas liquefaction employs__________________?

A. Exchange of heat with colder stream
B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
C. Adiabatic expansion against a piston or in a turbine
D. Merely compressing the gas beyond its critical pressure

Latest Chemical Process MCQs – Competitive Chemical Engineering MCQs

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