565 + Mcqs in Chemical Process McqOptions

1.	/_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
Answer» C. Adiabatic expansion against a piston or in a turbine

Discussion

2.	/_The main use of HCl is in the?
A.	Drilling of petroleum wells and pickling of steel sheets
B.	Manufacture of cationic detergent
C.	Treatment of spent fuel of nuclear reactor
D.	None of these
Answer» B. Manufacture of cationic detergent

Discussion

3.	/_Terylene is?
A.	Same as dacron
B.	A polyester
C.	Both A & B
D.	Neither A nor B
Answer» D. Neither A nor B

Discussion

4.	/_Teflon is?
A.	Phenol formaldehyde
B.	An inorganic polymer
C.	Poly tetrafluoroethylene (P.T.F.E.)
D.	A monomer
Answer» D. A monomer

Discussion

5.	/_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

6.	/_Bromine content in sea water may be around __________ ppm.?
A.	70
B.	640
C.	1875
D.	2500
Answer» B. 640

Discussion

7.	/_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

8.	/_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

9.	/_Fish contains about __________ percent oil.?
A.	5
B.	10
C.	20
D.	35
Answer» D. 35

Discussion

10.	/___________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.?
A.	Pyrex
B.	Soda lime
C.	Lead
D.	High silica
Answer» B. Soda lime

Discussion

11.	%_Glass is_%
A.	Mainly CaO
B.	Subjected to galvanising
C.	A super cooled liquid
D.	All of the above
Answer» D. All of the above

Discussion

12.	%_Gun powder uses_%
A.	Sulphur
B.	Charcoal
C.	Potassium nitrate
D.	All of the above
Answer» E.

Discussion

13.	%_A substance produced by a living organism and capable of anti-microbial activity is called a/an_%
A.	Antibiotic
B.	Antiseptic
C.	Disinfectant
D.	None of these
Answer» B. Antiseptic

Discussion

14.	%_Percentage of glycerene present in the spent lye obtained during soap manufacture is about_%
A.	0.5
B.	5
C.	20
D.	35
Answer» C. 20

Discussion

15.	%_Average sulphur content in Indian pyrites is about __________ percent._%
A.	15
B.	35
C.	55
D.	70
Answer» C. 55

Discussion

16.	%___________ is used as a catalyst in fat splitting._%
A.	ZnO
B.	Ni
C.	V‚Äö√á√áO‚Äö√á√ñ
D.	FeO
Answer» B. Ni

Discussion

17.	%_Fat dispersed in water is exemplified by_%
A.	Colloids
B.	Gel
C.	Butter
D.	Emulsion
Answer» D. Emulsion

Discussion

18.	%_Le-Blanc process is a primitive process for the manufacture of_%
A.	Caustic soda
B.	Soda ash
C.	Bromine from sea water
D.	Hydrochloric acid
Answer» C. Bromine from sea water

Discussion

19.	%_Cement setting under water employs a/an __________ process._%
A.	Hydration
B.	Decomposition
C.	Oxidation
D.	Reduction
Answer» B. Decomposition

Discussion

20.	%_Chloramines are used in water treatment for_%
A.	Disinfection and control of taste & odour
B.	Corrosion control
C.	Removing turbidity
D.	Control of bacteria
Answer» B. Corrosion control

Discussion

21.	%_90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ ¬¨‚àûC._%
A.	<0
B.	10-30
C.	250-280
D.	500-600
Answer» C. 250-280

Discussion

22.	%_Styrene butadiene rubber (SBR) is_%
A.	A natural rubber
B.	A synthetic polymer
C.	A synthetic monomer
D.	Another name of silicone rubber
Answer» C. A synthetic monomer

Discussion

23.	%_Phosphoric acid is prepared from_%
A.	Cryolite
B.	Chalcopyrite
C.	Rock phosphate
D.	None of these
Answer» D. None of these

Discussion

24.	%_Phenol formaldehyde_%
A.	Employs addition polymerisation
B.	Employs condensation polymerisation
C.	Is a monomer
D.	Is an abrasive material
Answer» C. Is a monomer

Discussion

25.	%_Parathion and Malathion are_%
A.	Pesticides
B.	Plasticisers for unsaturated polysters
C.	Pain-relieving drugs (analgesic)
D.	Tranquilisers
Answer» B. Plasticisers for unsaturated polysters

Discussion

26.	%_Nylon-6 is a_%
A.	Polyamide
B.	Thermosetting resin
C.	Polyester
D.	None of these
Answer» B. Thermosetting resin

Discussion

27.	%_Sodium chloride content in sea water is about __________ gms/litre._%
A.	2
B.	10
C.	25
D.	50
Answer» D. 50

Discussion

28.	%_Inversion of sucrose produces_%
A.	Fructose
B.	Glucose
C.	Both A & B
D.	Neither A nor B
Answer» C. Both A & B

Discussion

29.	%_Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre._%
A.	Cutting
B.	Fibrillation
C.	Hydration
D.	Strengthening
Answer» E.

Discussion

30.	%_The most stable allotropic form of phosphorous is the __________ phosphorous._%
A.	White
B.	Black
C.	Yellow
D.	Red
Answer» C. Yellow

Discussion

31.	%_Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent._%
A.	10
B.	25
C.	50
D.	98
Answer» B. 25

Discussion

32.	%_Coke oven gas consists mainly of_%
A.	H‚Äö√á√á, & CH‚Äö√á√ë
B.	CO, & CO‚Äö√á√á
C.	H‚Äö√á√á, & CO
D.	CH‚Äö√á√ë, & CO
Answer» B. CO, & CO‚Äö√á√á

Discussion

33.	%_Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have_%
A.	High electrical insulation properties
B.	Sharp melting points
C.	Low co-efficient of thermal expansion
D.	Compressive strength much greater than their tensile strengths
Answer» C. Low co-efficient of thermal expansion

Discussion

34.	%_Lindane is_%
A.	Not a fumigant
B.	BHC (Benzene Hexa Chloride) containing 99% ≈í‚â•-isomer
C.	A by-product of BHC manufacture
D.	Both B and C
Answer» C. A by-product of BHC manufacture

Discussion

35.	%___________ is produced using polycondensation reaction._%
A.	Polythene
B.	Phenol formaldehyde
C.	Poly vinyl chloride
D.	None of these
Answer» C. Poly vinyl chloride

Discussion

36.	_ Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?$?
A.	Slag cement
B.	Glasses
C.	Porcelain/Potteries
D.	Teflon
Answer» E.

Discussion

37.	_ Dehydrogenation of isopropanol produces$?
A.	Propyl alcohol
B.	Acetone
C.	Trichloroethylene
D.	Formaldehyde
Answer» C. Trichloroethylene

Discussion

38.	_ Nylon-6 is a$?
A.	Polyamide
B.	Thermosetting resin
C.	Polyester
D.	None of these
Answer» B. Thermosetting resin

Discussion

39.	_ The basic constituent of vegetable oils is$?
A.	Triglyceride
B.	Fatty acids
C.	Fatty alcohol
D.	Mono esters
Answer» B. Fatty acids

Discussion

40.	_ Fermentation is adversely affected by the$?
A.	Presence of air
B.	Absence of air
C.	High concentration
D.	Presence of ammonium salts
Answer» D. Presence of ammonium salts

Discussion

41.	_ 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

42.	_ High acid value of an oil or fat is an indication of$?
A.	Storage under improper conditions
B.	Absence of unsaturation
C.	Its smaller molecular weight
D.	None of these
Answer» B. Absence of unsaturation

Discussion

43.	_ Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.$?
A.	Flint
B.	Soda
C.	Pyrex
D.	Potash
Answer» D. Potash

Discussion

44.	_ CO & H‚Äö√á√á are the constituents of$?
A.	Producer gas
B.	Water gas
C.	Coke oven gas
D.	All of the above
Answer» E.

Discussion

45.	_ Coke used for the production of calcium carbide should have$?
A.	Low ash content
B.	Low ignition temperature
C.	High electrical resistivity
D.	All of the above
Answer» E.

Discussion

46.	_ __________ process is used for the manufacture of sodium carbonate by ammonia soda process.$?
A.	Ostwald's
B.	Bosch
C.	Solvay
D.	Haber's
Answer» D. Haber's

Discussion

47.	_ Which of the following is a constituent of coffee?$?
A.	Caffeine
B.	Nicotine
C.	Calgon
D.	Lignin
Answer» B. Nicotine

Discussion

48.	_ Starting raw material for the manufacture of alum is$?
A.	Alumina
B.	Gypsum
C.	Bauxite
D.	Ammonium bicarbonate
Answer» D. Ammonium bicarbonate

Discussion

49.	_ Fats as compared to oils have$?
A.	More unsaturated glycerides of fatty acids
B.	Less unsaturated glycerides of fatty acids
C.	Much higher reactivity to oxygen
D.	Lower melting point
Answer» C. Much higher reactivity to oxygen

Discussion

50.	_ Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?$?
A.	NH?
B.	NaCl
C.	CaO
D.	Coke
Answer» B. NaCl

Discussion

Explore topic-wise MCQs in Testing Subject.

*/*_Linde process of gas liquefaction employs?

*/*_The main use of HCl is in the?

*/*_Terylene is?

*/*_Teflon is?

*/*_Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass.?

*/*_Bromine content in sea water may be around __________ ppm.?

*/*_Which of the following processes can remove both temporary as well as permanent hardness of water??

*/*_The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by?

*/*_Fish contains about __________ percent oil.?

*/*___________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.?

%_Glass is_%

%_Gun powder uses_%

%_A substance produced by a living organism and capable of anti-microbial activity is called a/an_%

%_Percentage of glycerene present in the spent lye obtained during soap manufacture is about_%

%_Average sulphur content in Indian pyrites is about __________ percent._%

%___________ is used as a catalyst in fat splitting._%

%_Fat dispersed in water is exemplified by_%

%_Le-Blanc process is a primitive process for the manufacture of_%

%_Cement setting under water employs a/an __________ process._%

%_Chloramines are used in water treatment for_%

%_90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ ¬¨‚àûC._%

%_Styrene butadiene rubber (SBR) is_%

%_Phosphoric acid is prepared from_%

%_Phenol formaldehyde_%

%_Parathion and Malathion are_%

%_Nylon-6 is a_%

%_Sodium chloride content in sea water is about __________ gms/litre._%

%_Inversion of sucrose produces_%

%_Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre._%

%_The most stable allotropic form of phosphorous is the __________ phosphorous._%

%_Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent._%

%_Coke oven gas consists mainly of_%

%_Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have_%

%_Lindane is_%

%___________ is produced using polycondensation reaction._%

_ Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?$?

_ Dehydrogenation of isopropanol produces$?

_ Nylon-6 is a$?

_ The basic constituent of vegetable oils is$?

_ Fermentation is adversely affected by the$?

_ Viscose rayon$?

_ High acid value of an oil or fat is an indication of$?

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

_ CO & H‚Äö√á√á are the constituents of$?

_ Coke used for the production of calcium carbide should have$?

_ __________ process is used for the manufacture of sodium carbonate by ammonia soda process.$?

_ Which of the following is a constituent of coffee?$?

_ Starting raw material for the manufacture of alum is$?

_ Fats as compared to oils have$?

_ Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?$?

/_Linde process of gas liquefaction employs?

/_The main use of HCl is in the?

/_Terylene is?

/_Teflon is?

/_Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass.?

/_Bromine content in sea water may be around __________ ppm.?

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

/_The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by?

/_Fish contains about __________ percent oil.?

/___________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.?