565 + Mcqs in Chemical Process Page 7 McqOptions

301.	_ Which glass is usually used in optical work?$?
A.	Lead glass
B.	High silica (borosilicate) glass
C.	Photo-sensitive glass
D.	Fibre glass
Answer» D. Fibre glass

Discussion

302.	_ Dechlorination of treated water is necessary to$?
A.	Remove residual turbidity
B.	Reduce the bacterial load on filter
C.	Control taste and odour
D.	Remove chlorinous taste
Answer» E.

Discussion

303.	_ The gasification reaction represented by, C + H‚Äö√á√áO = CO + H‚Äö√á√á, is a/an __________ reaction.$?
A.	Exothermic
B.	Endothermic
C.	Catalytic
D.	Autocatalytic
Answer» C. Catalytic

Discussion

304.	_ The most economical pulp for the production of newsprint would be the __________ pulp.$?
A.	Groundwood
B.	Sulphate
C.	Sulphite
D.	Semichemical
Answer» B. Sulphate

Discussion

305.	_ Free alkali in a toilet soap is __________ that in a laundary shop.$?
A.	Less than
B.	More than
C.	Same
D.	None of these
Answer» B. More than

Discussion

306.	_ Titanium dioxide is a/an __________ colour pigment.$?
A.	White
B.	Black
C.	Yellow
D.	Blue
Answer» B. Black

Discussion

307.	_ Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.$?
A.	1
B.	2.5
C.	5
D.	10
Answer» C. 5

Discussion

308.	_ Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of$?
A.	Carbon
B.	Arsenic
C.	Lead
D.	Sulphur
Answer» C. Lead

Discussion

309.	_ Hydrogenation of edible vegetable oils$?
A.	Is an exothermic reaction
B.	Increases their melting point
C.	Is done in presence of nickel catalyst
D.	All of the above
Answer» E.

Discussion

310.	_ Phosphate rock is a raw material for the manufacture of$?
A.	Phosphoric acid
B.	Phosphorous
C.	Superphosphates
D.	All of the above
Answer» E.

Discussion

311.	_ Calcareous & argillaceous materials are used in the manufacture of$?
A.	Lead
B.	Cement
C.	Carbon disulphide
D.	None of these
Answer» C. Carbon disulphide

Discussion

312.	_ __________ paper is used in the manufacture of newsprint paper.$?
A.	Groundwood
B.	Board
C.	Tissue
D.	Wrapping
Answer» B. Board

Discussion

313.	_ Which of the following is an organo-metal-lic compound?$?
A.	Isopropyl alcohol
B.	Tetra-ethyl lead
C.	Zeolite
D.	Cumene
Answer» C. Zeolite

Discussion

314.	_ Blue vitriol is chemically$?
A.	Copper sulphate
B.	Ferrous sulphate
C.	Copper nitrate
D.	Aluminium sulphate
Answer» B. Ferrous sulphate

Discussion

315.	_ Multistage catalytic converter is not used in the$?
A.	Conversion of SO‚Äö√á√á to SO‚Äö√á√â
B.	NH‚Äö√á√â synthesis reaction
C.	Both A & B
D.	Neither A nor B
Answer» C. Both A & B

Discussion

316.	_ Which of the following processes can remove both temporary as well as permanent hardness of water?$?
A.	Filtration
B.	Boiling
C.	Distillation
D.	None of these
Answer» D. None of these

Discussion

317.	_ Bromine content in sea water may be around __________ ppm.$?
A.	70
B.	640
C.	1875
D.	2500
Answer» B. 640

Discussion

318.	_ Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass.$?
A.	Lead
B.	Borosilicate
C.	Soda lime
D.	Alkali silicate
Answer» C. Soda lime

Discussion

319.	_ Fourdrinier machine is used in the manufacture of$?
A.	Nylon-6
B.	Paper
C.	Antibiotics
D.	Sugar
Answer» C. Antibiotics

Discussion

320.	_ The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by$?
A.	Electrolysis
B.	Electrolytic reduction
C.	Electrolytic oxidation
D.	None of these
Answer» C. Electrolytic oxidation

Discussion

321.	_ Lurgi coal gasifier is a pressurised __________ bed reactor.$?
A.	Moving
B.	Fixed
C.	Fluidised
D.	Entrained
Answer» B. Fixed

Discussion

322.	__Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at__
A.	1 atm & 100¬¨‚àûC
B.	5 atm & 275¬¨‚àûC
C.	100 atm & 500¬¨‚àûC
D.	50 atm & 1000¬¨‚àûC
Answer» C. 100 atm & 500¬¨‚àûC

Discussion

323.	__Sudden temperature fluctuation does not affect pyrex glass, because of its__
A.	Low co-efficient of expansion
B.	High co-efficient of expansion
C.	High melting point
D.	Both B and C
Answer» B. High co-efficient of expansion

Discussion

324.	__Addition of calcium oxide to water produces__
A.	Exothermic heat
B.	Hissing sound
C.	Slaked lime
D.	All of the above
Answer» E.

Discussion

325.	__In multistage equilibrium conversion of SO‚Äö√á√á to SO‚Äö√á√â (2SO‚Äö√á√á + O‚Äö√á√á ‚Äö√°√£ 2SO‚Äö√á√â), the reverse reaction becomes appreciable at a temperature of 550¬¨‚àû C. The percentage equilibrium conversion of SO‚Äö√á√á to SO‚Äö√á√â can be increased by__
A.	Increasing the oxygen concentration
B.	Putting more quantity of V‚Äö√á√áO‚Äö√á√ñ catalyst in the converter
C.	Removing some quantity of SO‚Äö√á√â during intermediate stage
D.	Maintaining low temperature & pressure in the converter
Answer» D. Maintaining low temperature & pressure in the converter

Discussion

326.	__Which of the following is the main constituent of the mother liquor produced in salt industry?__
A.	Quick lime
B.	Glauber's salt
C.	Salt petre
D.	Bromine
Answer» E.

Discussion

327.	__Which of the following is not produced on commercial scale from sea water?__
A.	Bromine
B.	Magnesium compounds
C.	Potassium compounds
D.	Sodium sulphate
Answer» E.

Discussion

328.	__Naphthalene is removed from coke oven gas by__
A.	Adsorbing on palladium
B.	Absorbing in ethanolamine
C.	Scrubbing with wash oil
D.	Passing it through electrostatic precipitator
Answer» D. Passing it through electrostatic precipitator

Discussion

329.	__Common salt is generally not produced commonly by __________ method from brine.__
A.	Freeze drying
B.	Electrolytic
C.	Solar evaporation
D.	Vacuum evaporation
Answer» B. Electrolytic

Discussion

330.	__Wet chlorine gas produced during electrolysis of brine is dehydrated by__
A.	Spraying 66¬¨‚àû Be H‚Äö√á√áSO‚Äö√á√ë counter current to the flow of the gas
B.	Passing it through a bed of diatomaceous earth
C.	Passing it through a bed of silica gel
D.	None of these
Answer» B. Passing it through a bed of diatomaceous earth

Discussion

331.	__Acetone is produced by catalytic dehydrogenation of__
A.	Phenol
B.	Naphthalene
C.	Isopropanol
D.	Ethyl benzene
Answer» D. Ethyl benzene

Discussion

332.	__Washing of coal is done to__
A.	Remove the inherent impurities
B.	Remove the adhering impurities
C.	Reduce the ash content
D.	Both B and C
Answer» E.

Discussion

333.	__Viscose rayon__
A.	Cannot be made from sulphite pulp
B.	Utilises H‚Äö√á√áSO‚Äö√á√ë, NaOH and CS‚Äö√á√á during its manufacture
C.	Cannot yield textile grade fibre
D.	None of these
Answer» C. Cannot yield textile grade fibre

Discussion

334.	__Solvent extracted oil__
A.	Has low free fatty acid content
B.	Is odourless
C.	Has more of unsaturates
D.	None of these
Answer» E.

Discussion

335.	__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.	Drying
B.	Semi-drying
C.	Non-drying
D.	None of these
Answer» D. None of these

Discussion

336.	____________ is not a constituent of gun powder.__
A.	Carbon
B.	Charcoal
C.	Sulphur
D.	Potassium nitrate
Answer» B. Charcoal

Discussion

337.	__The type of high refractive index glass used in optical instruments is __________ glass.__
A.	Pyrex
B.	Flint
C.	Crookes
D.	None of these
Answer» C. Crookes

Discussion

338.	__Claude process of gas liquefaction employs__
A.	Merely compression of gas beyond its critical pressure
B.	Joule-Thomson expansion cooling
C.	Heat exchange with colder stream
D.	Adiabatic expansion against a piston or in a turbine
Answer» E.

Discussion

339.	__Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.__
A.	Hard
B.	Soft
C.	Metallic
D.	Lubricating
Answer» C. Metallic

Discussion

340.	__Triple superphosphate is manufactured by reacting__
A.	Phosphate rock with phosphoric acid
B.	Phosphate rock with sulphuric acid
C.	Phosphate rock with nitric acid
D.	Ammonium phosphate with phosphoric acid
Answer» B. Phosphate rock with sulphuric acid

Discussion

341.	__Yellow glycerine is made into white, using__
A.	Activated carbon
B.	Diatomaceous earth
C.	Bauxite
D.	Bentonite
Answer» B. Diatomaceous earth

Discussion

342.	__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.	75
B.	< 10
C.	> 30
D.	50
Answer» C. > 30

Discussion

343.	__Builders are added in soap to act as__
A.	Cleaning power booster
B.	Anti-redeposition agent
C.	Corrosion inhibitor
D.	Fabric brightener
Answer» B. Anti-redeposition agent

Discussion

344.	____________ process is used for producing soda ash.__
A.	Chamber
B.	Chance
C.	Tromp
D.	Solvay
Answer» E.

Discussion

345.	__Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of__
A.	Nitric acid
B.	Sulphuric acid
C.	Ammonium sulphate
D.	Hydrochloric acid
Answer» C. Ammonium sulphate

Discussion

346.	__Plaster of Paris is__
A.	CaSO‚Äö√á√ë.¬¨Œ©H‚Äö√á√áO
B.	Used for setting of broken bones
C.	Both A and B
D.	Same as gypsum
Answer» D. Same as gypsum

Discussion

347.	__Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ ¬¨‚àûC.__
A.	-5 to 0
B.	5 to 10
C.	30 to 50
D.	75 to 80
Answer» D. 75 to 80

Discussion

348.	__L.D. converter is used in the production of__
A.	Pig iron
B.	Steel
C.	Copper
D.	Zinc
Answer» C. Copper

Discussion

349.	__Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.__
A.	Mechanical
B.	Sulphate/kraft
C.	Sulphite
D.	Neutral sulphite semi-chemical
Answer» E.

Discussion

350.	__The most reactive allotropic form of phosphorus is __________ phosphorus.__
A.	Red
B.	Yellow
C.	Violet
D.	Black
Answer» C. Violet

Discussion

Explore topic-wise MCQs in Chemical Engineering.

_ Which glass is usually used in optical work?$?

_ Dechlorination of treated water is necessary to$?

_ The gasification reaction represented by, C + H‚Äö√á√áO = CO + H‚Äö√á√á, is a/an __________ reaction.$?

_ The most economical pulp for the production of newsprint would be the __________ pulp.$?

_ Free alkali in a toilet soap is __________ that in a laundary shop.$?

_ Titanium dioxide is a/an __________ colour pigment.$?

_ Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.$?

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

_ Hydrogenation of edible vegetable oils$?

_ Phosphate rock is a raw material for the manufacture of$?

_ Calcareous & argillaceous materials are used in the manufacture of$?

_ __________ paper is used in the manufacture of newsprint paper.$?

_ Which of the following is an organo-metal-lic compound?$?

_ Blue vitriol is chemically$?

_ Multistage catalytic converter is not used in the$?

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

_ Bromine content in sea water may be around __________ ppm.$?

_ Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass.$?

_ Fourdrinier machine is used in the manufacture of$?

_ The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by$?

_ Lurgi coal gasifier is a pressurised __________ bed reactor.$?

__Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at__

__Sudden temperature fluctuation does not affect pyrex glass, because of its__

__Addition of calcium oxide to water produces__

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

__Which of the following is not produced on commercial scale from sea water?__

__Naphthalene is removed from coke oven gas by__

__Common salt is generally not produced commonly by __________ method from brine.__

__Wet chlorine gas produced during electrolysis of brine is dehydrated by__

__Acetone is produced by catalytic dehydrogenation of__

__Washing of coal is done to__

__Viscose rayon__

__Solvent extracted oil__

__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.__

____________ is not a constituent of gun powder.__

__The type of high refractive index glass used in optical instruments is __________ glass.__

__Claude process of gas liquefaction employs__

__Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.__

__Triple superphosphate is manufactured by reacting__

__Yellow glycerine is made into white, using__

__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.__

__Builders are added in soap to act as__

____________ process is used for producing soda ash.__

__Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of__

__Plaster of Paris is__

__Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ ¬¨‚àûC.__

__L.D. converter is used in the production of__

__Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.__

__The most reactive allotropic form of phosphorus is __________ phosphorus.__

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Sudden temperature fluctuation does not affect pyrex glass, because of its

Addition of calcium oxide to water produces

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

Which of the following is not produced on commercial scale from sea water?

Naphthalene is removed from coke oven gas by

Common salt is generally not produced commonly by ______ method from brine.

Wet chlorine gas produced during electrolysis of brine is dehydrated by

Acetone is produced by catalytic dehydrogenation of

Washing of coal is done to

Viscose rayon

Solvent extracted oil

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.

__________ is not a constituent of gun powder.

The type of high refractive index glass used in optical instruments is ______ glass.

Claude process of gas liquefaction employs

Sodium salt of higher molecular weight fatty acid is termed as the ______ soap.

Triple superphosphate is manufactured by reacting

Yellow glycerine is made into white, using

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.

Builders are added in soap to act as

__________ process is used for producing soda ash.

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

Plaster of Paris is

Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is ______ ¬¨‚àûC.

L.D. converter is used in the production of

Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the ______ process.

The most reactive allotropic form of phosphorus is ______ phosphorus.