Compettive Chemical Engineering MCQs – New Chemical Process MCQs

Compettive Chemical Engineering MCQs – New Chemical Process 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:

Addition of calcium oxide to water produces___________________?

A. Hissing sound
B. Exothermic heat
C. Slaked lime
D. All A , B. & C

Pick out the wrong statement ?

A. Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur
C. Lead azide is a popular military explosive
B. Low intensity explosives are also called propellants, whereas high intensity explosive are called detonators
D. TNT is a hygroscopic explosive having very high melting point and is non-toxic to human being

____________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia ?

A. Haber’s
B. Ostwald’s
C. Solvay
D. None of these

Dense soda ash used in the manufacture of glass, is chemically represented by__________________?

A. Na2CO3.10H2O
B. Na2CO3
C. Na2CO3.H2O
D. Na2HCO3

Which of the following is a detergent ?

A. Cellulose nitrate
B. Alkyl benzene sulphonate
C. Polytetrafluoroethylene
D. Benzene hexachloride

Coagulant is used _________________ filtration?

A. Before
B. During
C. After
D. To avoid

In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by ?

A. Putting more quantity of V2O5 catalyst in the converter
B. Increasing the oxygen concentration
C. Removing some quantity of SO3 during intermediate stage
D. Maintaining low temperature & pressure in the converter

Calgon used in water treatment is chemically ____________________?

A. Calcium phosphate
B. Sodium hexametaphosphate
C. Sodium phosphate
D. Tricresyl phosphate

Caprolactam (a raw material for nylon-6 manufacture) is produced from ___________________?

A. Naphthalene
B. Phenol
C. Benzene
D. Pyridine

Pick out the wrong statement ?

A. Protein catalysts are called enzymes
B. Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively
C. The rate of chemical reaction is independent of the concentration of reactants at high concentration of enzymes
D. Total sugar content in molasses is about 10%

The type of high refractive index glass used in optical instruments is _____________ glass?

A. Crookes
B. Flint
C. Pyrex
D. None of these

Nitrogen is an essential component of ____________________?

A. Carbohydrates
B. Mineral salts
C. Fats
D. Proteins

Fumigant insecticides___________________?

A. Emit poisonous vapour
B. Kill insects, when they eat it
C. Are absorbed throughout the plant
D. None of these

Oxidation of ortho-xylene in presence of ______________ catalyst is done to produce phthalic anhydride on commercial scale ?

A. Alumina
B. Vanadium
C. Nickel
D. Iron

Ca(OH)2 is called __________________?

A. Limestone
B. Slaked lime
C. Quicklime
D. Gypsum

Helium is produced on commercial scale from__________________?

A. Coke oven gas
B. Natural gas
C. Air
D. None of these

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically____________________?

A. Cyclo trimethylene trinitramine
B. Cyclo tetramethylene tetranitramine
C. Trinitro resorcinol
D. Trinitrobenzene

Catalytic oxidation of naphthalene produces_______________?

A. Phenol
B. Styrene
C. Phthalic anhydride
D. None of these

Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils________________?

A. Cause cholesterol build up and blood clotting
B. Have affinity to retain harmful sulphur compounds
C. Always contain some amount of nickel (as their complete removal is very difficult)
D. Are prone to rancid oxidation

Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc ?

A. Caustic soda
B. Sodium borate
C. Sodium tripolyphosphate (STPP)
D. Sodium silicate

Pick out the wrong statement ?

A. Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number
B. Fibrillation of fibre during paper manufacture is done to develop the strength in paper
C. Bagasse fibre contains both lignin & cellulose
D. Presence of sodium sulphate in pulp makes the pulp bleachability poor

Pick out the wrong statement ?

A. Pasteurisation of milk involves moderate heating followed by cooling
B. Enzyme is a complex nitrogenous compound
C. Bakeries and breweries make use of yeasts
D. Oils and fats are alkaloids

Fuels And Combustion Mcqs

Pick out the wrong statement?

A. Vitriol oil is nothing but technical sulphuric acid
B. The chemical formula of oleum is H2S2O7, which is formed by saturating sulphuric acid with sulphur trioxide
C. Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98%
D. Decomposition of sulphuric acid on heating does not start before its boiling

Catalytic oxidation of naphthalene produces ?

A. Phenol
B. Styrene
C. Phthalic anhydride
D. None of these

Oils are partially hydrogenated (not fully) to manufacture Vanaspati , because fully saturated solidified oils ?

A. Cause cholesterol build up and blood clotting
B. Have affinity to retain harmful sulphur compounds
C. Always contain some amount of nickel (as their complete removal is very difficult
D. Are prone to rancid oxidation

Fats as compared to oils have ___________________?

A. Lower melting point
B. Less unsaturated glycerides of fatty acids
C. Much higher reactivity to oxygen
D. More unsaturated glycerides of fatty acids

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________?

A. 4 kgf/cm2 & 500°C
B. 40 kg/cm2 & 200°C
C. 10 kgf/cm2 & 1000°C
D. 100 kgf/cm2 & 500°C

Calcareous & argillaceous materials are used in the manufacture of ___________________?

A. Carbon disulphide
B. Cement
C. Lead
D. None of these

Dichloro diphenyl ________________ is the full form of DDT (an insecticide) ?

A. Tetrachloromethane
B. Trichloroethane
C. Tetrachloroethane
D. Trichloromethane

Isopropyl benzene produced by alkylation of benzene with propylene is known as _________________?

A. Gelatin
B. Cumene
C. Neoprene
D. Mercaptans

Detergent is produced by the sulphonation of dodecyl benzene, which is an ________________ reaction

A. Endothermic
B. Irreversible
C. Exothermic
D. Both B. and C.

Fertilizer Technology Mcqs

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively ?

A. Oxides of nitrogen & Cr2O3
B. V2O5 & Cr2O3.
C. V2O5 on a porous carrier & oxides of nitrogen
D. Oxides of nitrogen & V2O5 on a porous carrier

High temperature carbonisation of coal produces _____________________ ?

A. Less of gases compared to liquid products
B. Inferior coke compared to low temperature carbonisation
C. Larger quantity of tar compared to low temperature carbonisation
D. None of these

Which of the following is used as a coagulant in water treatment ?

A. Chlorine
B. Chloramine
C. Ferrous sulphate
D. Hydrogen peroxide

Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as ____________________ oil?

A. Semi-drying
B. Drying
C. Non-drying
D. None of these

Which of the following has sodium bicarbonate as its main constituent ?

A. Washing soda
B. Baking powder
C. Baking soda
D. None of these

Fermentation of molasses to produce ethyl alcohol is done at ________________ °C?

A. 20 – 30
B. 100 – 150
C. < – 5
D. 250 – 300

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine ?

B. Na2CO3
C. H2
D. None of these

Nylon-66 is manufactured from____________________?

A. Hexamethylene diamine and adipic acid
B. Caprolactam
C. Hexamethylene diamine and Maleic anhydride
D. Dimethyl terephthalate and ethylene glycol

Anion exchanger is regenerated usually with ____________________?

B. Hydrazine
C. H2SO4
D. Alum solution

Low purity oxygen is used for____________________?

A. Cutting and welding of metals
B. L.D. steel making
C. Medicinal purposes
D. Chemical oxidation processes

Highly porous refractory bricks are ____________________?

A. Less susceptible to chemical attack by molten fluxes and gases etc
B. Having very high thermal conductivity
C. Very strong
D. None of these

The temperature in the calcium carbide furnace is _______________ °C ?

A. 700-850
B. 200-300
C. 2000-2200
D. 4000-4500

Sodium chloride content in sea water is about _______________ gms/liter?

A. 10
B. 2
C. 25
D. 50

Lindane is____________________?

A. A by-product of BHC manufacture
B. BHC (Benzene Hexachloride) containing 99% γ-isomer
C. Not a fumigant
D. Both B. and C.

Carboxymethyl cellulose (CMC) is added in detergents to act as a/an___________________?

A. Builder
B. Surfactant
C. Optical brightening agent
D. Anti soil redeposition agent

Kopper-Totzek coal gasifier_________________?

A. Can give ammonia synthesis gas (H2 + N2)
B. Cannot use coking coal
C. Is a moving bed reactor
D. Operate at very high pressure

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?

A. 50
B. < 10
C. > 30
D. 75

‘Synthesis gas’ meant for the synthesis of organic compound is a variable mixture of ____________________?

A. CO2 & H2
B. N2 & H2
C. CO & H2
D. C & H2

Starting raw material for the manufacture of Maleic anhydride is___________________?

A. Benzene
B. n-butene
C. Either A. or B.
D. Neither A. nor B.

Polyvinyl chloride (PVC) is____________________?

A. A condensation polymerisation product
B. A thermosetting material
C. Made by employing emulsion polymerisation
D. None of these

The basic difference between vegetable oils and fats is in their ___________________?

A. Chemical properties
B. Density
C. Physical state
D. Composition

Removal of dirt/soil by soaps or detergent does not involve the _______________ of soil ?

A. Dispersion
B. Emulsification
C. Precipitation
D. Wetting

Drinking (potable) water treatment does not involve __________________?

A. Sedimentation
B. Coagulation
C. Softening
D. Disinfection

Thorium is mainly used _______________?

A. For the manufacture of gas mantles
B. In the manufacture of hydrogen bomb
C. As a fissile fuel in a nuclear reactor
D. In the treatment of cancer

Which oil is preferred for paint manufacture ?

A. Drying oil
B. Non-drying oil
C. Semi-drying oil
D. Saturated oil

Pick out the wrong statement pertaining to nitric acid ?

A. About 90% of nitric acid is manufactured by Ostwald’s process
B. Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO2)
C. It is a strong mono basic acid which reacts with almost all the metals except noble metals
D. Arc process of nitric acid manufacture is economical as compared to Ostwald’s process

Tall oil obtained as a by-product from the black liquor recovery is________________?

A. Composed mainly of rosin & fatty acids
B. Used in the manufacture of greases, emulsions & soaps
C. A black, sticky & viscous liquid
D. All A , B. & C.

Magnesium and calcium ______________ cause temporary hardness of water ?

A. Phosphates
B. Bicarbonates
C. Carbonates
D. Sulphates

Which of the following, when pyrolysed, produces Perchloroethylene ?

A. Chlorobenzene
B. Ethylene dichloride
C. Carbon tetrachloride
D. Chlorinated paraffin

Chemical Environmental Engineering Mcqs

Pick out the exothermic reaction out of the following ?

A. MgCO3 = MgO + CO2
B. CaC2 + H2O = Ca(OH)2 + C2H2
C. C + H2O = CO + H2
D. All (A), B. and (C)

______________ paper is used in the manufacture of newsprint paper ?

A. Ground-wood
B. Tissue
C. Board
D. Wrapping

Which of the following is the main constituent of the mother liquor produced in salt industry ?

A. Glauber’s salt
B. Quick lime
C. Salt petre
D. Bromine

Concentration of hydrogen peroxide is done by_____________________?

A. Atmospheric distillation
B. Vacuum crystallisation
C. Crystallisation
D. Dehydration

Bakelite is chemically known as_____________________?

A. Polybutadiene
B. Polyvinyl chloride (PVC)
C. Phenol formaldehyde
D. Polyurethane

Terylene is__________________?

A. A polyester
B. Same as Dacron
C. Both A. & B.
D. Neither A. nor B.

Unsaturated oils compared to saturated oils have___________________?

A. Lower melting point & higher reactivity to oxygen
B. Lower melting point & lower reactivity to oxygen
C. Higher melting point & higher reactivity to oxygen
D. Higher melting point & lower reactivity to oxygen

Production of one ton of dry paper pulp requires about ___________________ tons of bamboo or wood?

A. 5
B. 2.5
C. 1
D. 10

Wax is a___________________?

A. Liquid at room temperature
B. Mixture of esters of polyhydric alcohols excepting glycerine
C. Mixture of glycerides
D. Mixture of glycerides of fatty acids

Ordinary glass is not a/an_________________?

A. Supercooled liquid
B. Amorphous isotropic material
C. Material with sharp definite melting point
D. Electrical insulator

Hydrochloric acid is also known as_________________?

A. Strong organic acid
B. Muriatic acid
C. Oil of vitriol
D. Green acid

Higher viscosity index of a lubricating oil denotes_______________?

A. Less changes in fluidity of oil with temperature
B. Its unsuitability under varying temperature conditions
C. Substantially high change in fluidity of oil with temperature
D. None of these

Chloral is used in the manufacture of__________________?

B. Parathion
D. None of these

Reverse osmosis is normally used for the_______________?

A. Separation of helium from natural gas
B. Separation of isotopes of uranium from gaseous uranium hexafluoride
C. Desalination of brackish water to produce potable (drinking) water
D. Purification of oxygen

Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is ____________ °C?

A. 5 to 10
B. -5 to 0
C. 30 to 50
D. 75 to 80

Transparent soaps (e.g. Pears) are____________________?

A. Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency
B. Metallic soaps with frothing agent from which glycerine has not been recovered
C. Metallic soaps with frothing agent and free Stearic acid to achieve transparency
D. None of these

The biochemical treatment applied to sewage effluents is a process of__________________?

A. Reduction
B. Dehydration
C. Oxidation
D. Polymerisation

At very high concentration of enzymes, the rate of fermentation chemical reaction is _____________ the concentration of reactants?

A. Independent of
B. Inversely proportional to
C. Directly proportional to
D. Proportional to the square of

______________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace?

A. Quartz
B. Limestone
C. Bauxite
D. Manganese

Dry ice (solidified CO2) is used for the___________________?

A. Storage & shipment of frozen foods and ice-creams
B. Liquefaction of natural gas
C. Liquefaction of permanent gases
D. None of these

The catalyst used in shift converter is___________________?

A. Nickel
B. Silica gel
C. Vanadium
D. Alumina

CaO is called__________________?

A. Quick lime
B. Limestone
C. Slaked lime
D. Calcite

Use of chlorine in the treatment of sewage_________________?

A. Helps in grease separation
B. Causes bulking of activated sludge
C. Increases the biological oxygen demand (BOD)
D. Aids in flocculation

Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?

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

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an?

A. Soap
B. Explosive
C. Detergent
D. Analgesic drug

____________ is a polysaccharide?

A. Sucrose
B. Starch
C. Maltose
D. Glucose

A unit operation is exemplified by the process of ___________________?

A. Nitration
B. Desorption
C. Reduction
D. Combustion

Catalytic oxidation-dehydrogenation of methyl alcohol produces__________________?

A. Formaldehyde
B. Acetone
C. Phenol
D. Maleic anhydride

______________ is produced by the dehydrogenation of ethyl benzene ?

A. Styrene
B. Cumene
C. Ethyl alcohol
D. Phenol

Good quality of edible salt is obtained from brine by the process of__________________?

A. Freeze drying
B. Vacuum evaporation
C. Solar evaporation
D. Electrolysis

In primitive days, _____________ was being manufactured by Leblanc Process ?

A. Washing soda
B. Alum
C. Soda ash
D. Calcium carbide

Dehydrogenation of ethyl benzene produces __________________ ?

A. Styrene
B. Phenol
C. Naphthalene
D. Benzoic acid

Main use of hydrazine is___________________?

A. As a rocket fuel
B. As a disinfectant
C. In water treatment
D. As fire retardant

The function of gypsum addition during cement making is to_________________?

A. Increase the density of cement
B. Decrease the cement setting rate
C. Both A. and B.
D. Neither A. nor B.

Catalyst used in the hydrogenation of oil is_________________?

A. Nickel
B. Iron
C. Platinum
D. Alumina

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is _____________________?

A. Alumina
B. Platinum
C. Silica gel
D. Nickel

10% oleum comprises of 10% free_________________?

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

______________ are added in lacquers to remove film brittleness and to improve adhereness?

A. Diluents
B. Plasticisers
C. Film forming materials
D. Solvents

DDT should not be allowed to come in contact with iron (during its manufacture) to _______________?

A. Avoid its decomposition
B. Achieve non-hygroscopic property
C. Prevent sulphonation of the monochlorobenzene by the acid catalyst
D. None of these

Which is the most efficient absorbent for SO3 out of the following ?

A. 65% oleum
B. 20% oleum
C. 78% H2SO4
D. 98% H2SO4

Compettive Chemical Engineering MCQs – New Chemical Process MCQs

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