*/*_Digestion of wood-base materials (for manufacture of pulp) is done to?

Prevent deterioration on storage

*/*_Analgesic drugs are?

Used in the treatment of typhiod

*/*_Presence of carbonaceous matter in the sewage?

Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures

Reduces sulphate ions to sulphides causing obnoxious smell

Increases the quantity of chlorine used for its purification

*/*_Which of the following is not responsible for causing permanent hardness of water??

Ca(HCO‚Äö√á√â)‚Äö√á√á

*/*_Nickel is not used as a catalyst in the?

Ostwald's process of HNO‚Äö√á√â manufacture

*/*_Which of the following processes does not produce Cl‚Äö√á√á as a co-product during the manufacture of caustic soda??

Diaphragm electrolytic cell process

Mercury electrolytic cell process

*/*_Manufacture of phthalic anhydride uses __________ as a catalyst.?

Al‚Äö√á√áO‚Äö√á√â

V‚Äö√á√áO‚Äö√á√ñ

Al‚Äö√á√áO‚Äö√á√â

*/*_Esterification reaction?

Is a reaction between an alcohol and an organic acid

*/*_Process conditions in fermentator used for production of penicillin is?

30¬¨‚àûC, 200 mm Hg (absolute)

*/*_Reverse osmosis is normally used for the?

Separation of isotopes of uranium from gaseous uranium hexaflouride

Separation of helium from natural gas

Desalination of brackish water to produce potable (drinking) water

*/*_Highly porous refractory bricks are?

Less susceptible to chemical attack by molten fluxes and gases etc

Having very high thermal conductivity

Mixture of esters of polyhydric alcohols excepting glycerine

Mixture of glycerides of fatty acids

*/*_Dechlorination of treated water is necessary to?

Reduce the bacterial load on filter

*/*_Which glass is usually used in optical work??

High silica (borosilicate) glass

*/*___________ is used as a catalyst in fat splitting.?

V‚Äö√á√áO‚Äö√á√ñ

*/*_The end bleaching agent used to move last traces of colour bodies from the pulp is?

Chlorine dioxide (ClO‚Äö√á√á)

Naturally occuring clay which is capable of exchanging cations

Catalyst used in shift conversion

*/*_Pick out the wrong statement.?

Water gas is called blue gas because of the color of the flame, when it is burnt

Strongly caking coal should not be used in the Lurgi gasifier

Acetylene gas can not be used for illumination purpose

Water gas is called blue gas because of the color of the flame, when it is burnt

Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

*/*_Air used in aerobic fermentation must be sterilized, otherwise the?

Uniformity of product cannot be achieved

Recovery of product will be difficult

Contamination of pure culture would result

Uniformity of product cannot be achieved

565 + Mcqs in Chemical Process in Chemical Engineering Page 4 McqOptions

151.	/_Digestion of wood-base materials (for manufacture of pulp) is done to?
A.	Remove lignin
B.	Produce long fibres
C.	Prevent deterioration on storage
D.	None of these
Answer» B. Produce long fibres

Discussion

152.	/_Analgesic drugs are?
A.	Pain relievers
B.	Antibiotics
C.	Used in the treatment of T.B.
D.	Used in the treatment of typhiod
Answer» B. Antibiotics

Discussion

153.	/_Presence of carbonaceous matter in the sewage?
A.	Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures
B.	Reduces sulphate ions to sulphides causing obnoxious smell
C.	Increases the quantity of chlorine used for its purification
D.	All of the above
Answer» E.

Discussion

154.	/_Temperature during hydrogenation of oil should not be more than 200¬¨‚àûC, otherwise it will result in?
A.	Pyrolysis of oil
B.	Sintering of porous catalyst
C.	Hydrogen embrittlement
D.	All of the above
Answer» E.

Discussion

155.	/_Which of the following is not responsible for causing permanent hardness of water??
A.	Ca(HCO‚Äö√á√â)‚Äö√á√á
B.	CaCl‚Äö√á√á
C.	MgCl‚Äö√á√á
D.	None of these
Answer» B. CaCl‚Äö√á√á

Discussion

156.	/_Nickel is not used as a catalyst in the?
A.	Fischer-Tropsch process
B.	Shift conversion
C.	Hydrogenation of oil
D.	Ostwald's process of HNO‚Äö√á√â manufacture
Answer» E.

Discussion

157.	/_Which of the following processes does not produce Cl‚Äö√á√á as a co-product during the manufacture of caustic soda??
A.	Diaphragm electrolytic cell process
B.	Mercury electrolytic cell process
C.	Lime-soda process
D.	None of these
Answer» D. None of these

Discussion

158.	/_Yeast is used in the manufacture of?
A.	Pencillin
B.	Antibiotics
C.	Wine
D.	Pasteurised milk
Answer» D. Pasteurised milk

Discussion

159.	/_Reaction of calcium carbide with water produces a gas, which is used?
A.	As an illuminant
B.	For metal cutting/welding
C.	Both A & B
D.	Neither A nor B
Answer» D. Neither A nor B

Discussion

160.	/_Manufacture of phthalic anhydride uses __________ as a catalyst.?
A.	Ni
B.	Cr
C.	V‚Äö√á√áO‚Äö√á√ñ
D.	Al‚Äö√á√áO‚Äö√á√â
Answer» D. Al‚Äö√á√áO‚Äö√á√â

Discussion

161.	/_Catalyst used in the hydrogenation of oil is?
A.	Nickel
B.	Platinum
C.	Iron
D.	Alumina
Answer» B. Platinum

Discussion

162.	/_Esterification reaction?
A.	Produces soap
B.	Is reversible
C.	Is a reaction between an alcohol and an organic acid
D.	All of the above
Answer» E.

Discussion

163.	/_Alcohol is produced by the?
A.	Oxidation of an aldehyde
B.	Hydrolysis of an ether
C.	Esterification of a fat
D.	None of these
Answer» C. Esterification of a fat

Discussion

164.	/_Which of the following is used as a binding material in soap to improve soap texture??
A.	Rosin
B.	Borax
C.	Benzyl acetate
D.	Sodium carbonate
Answer» C. Benzyl acetate

Discussion

165.	/_Process conditions in fermentator used for production of penicillin is?
A.	25¬¨‚àûC, 2 atm
B.	50¬¨‚àûC, l0 atm
C.	30¬¨‚àûC, 200 mm Hg (absolute)
D.	90¬¨‚àûC, 45 atm
Answer» B. 50¬¨‚àûC, l0 atm

Discussion

166.	/_Reverse osmosis is normally used for the?
A.	Separation of isotopes of uranium from gaseous uranium hexaflouride
B.	Separation of helium from natural gas
C.	Desalination of brackish water to produce potable (drinking) water
D.	Purification of oxygen
Answer» D. Purification of oxygen

Discussion

167.	/_Hydrophilic group of a soap or detergent solution is?
A.	Water hating
B.	Soil loving
C.	Water loving
D.	None of these
Answer» D. None of these

Discussion

168.	/_Sugar content in sugarcane on cane basis is about __________ percent by weight.?
A.	1 to 5
B.	5 to 10
C.	15 to 20
D.	20 to 30
Answer» C. 15 to 20

Discussion

169.	/_The catalyst used in shift converter is?
A.	Nickel
B.	Vanadium
C.	Silica gel
D.	Alumina
Answer» B. Vanadium

Discussion

170.	/_Highly porous refractory bricks are?
A.	Less susceptible to chemical attack by molten fluxes and gases etc
B.	Very strong
C.	Having very high thermal conductivity
D.	None of these
Answer» E.

Discussion

171.	/_Wax is a?
A.	Mixture of glycerides
B.	Mixture of esters of polyhydric alcohols excepting glycerine
C.	Liquid at room temperature
D.	Mixture of glycerides of fatty acids
Answer» C. Liquid at room temperature

Discussion

172.	/_Viscose rayon is?
A.	Cellulose nitrate
B.	Regenerated cellulose nitrate
C.	Regenerated cellulose acetate
D.	None of these
Answer» E.

Discussion

173.	/_In the production of soda ash by Solvay process, the by-product is?
A.	CaCl‚Äö√á√á
B.	NH‚Äö√á√ëCl
C.	NH‚Äö√á√â
D.	NaOH
Answer» B. NH‚Äö√á√ëCl

Discussion

174.	/_Titanium dioxide is a/an __________ colour pigment.?
A.	White
B.	Black
C.	Yellow
D.	Blue
Answer» B. Black

Discussion

175.	/_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

176.	/_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

177.	/_Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ ¬¨‚àûC.?
A.	25
B.	60-70
C.	150-200
D.	250-300
Answer» C. 150-200

Discussion

178.	/_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

179.	/_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

180.	/_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

181.	/_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

182.	/_Fat dispersed in water is exemplified by?
A.	Colloids
B.	Gel
C.	Butter
D.	Emulsion
Answer» D. Emulsion

Discussion

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

Discussion

184.	/___________ 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

185.	/_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

186.	/_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

187.	/_Chemical name of 'alum' is?
A.	Barium sulphate
B.	Aluminium sulphate
C.	Aluminium chloride
D.	Calcium sulphate
Answer» C. Aluminium chloride

Discussion

188.	/_The difference between saponification value and acid value is?
A.	Called ester value
B.	Always negative
C.	Constant for all fatty oils
D.	None of these
Answer» B. Always negative

Discussion

189.	/_CaO is called?
A.	Quick lime
B.	Slaked lime
C.	Limestone
D.	Calcite
Answer» B. Slaked lime

Discussion

190.	/_The end bleaching agent used to move last traces of colour bodies from the pulp is?
A.	Chlorine dioxide (ClO‚Äö√á√á)
B.	MgO
C.	SO‚Äö√á√á gas
D.	Mercaptans
Answer» B. MgO

Discussion

191.	/_Which of the following is used as a coagulant in water treatment??
A.	Chloramine
B.	Chlorine
C.	Ferrous sulphate
D.	Hydrogen peroxide
Answer» D. Hydrogen peroxide

Discussion

192.	/_Thermosetting materials?
A.	Are cross-linked molecules
B.	Soften on application of heat
C.	Are solvent soluble
D.	None of these
Answer» B. Soften on application of heat

Discussion

193.	/_Zeolite is a/an?
A.	Naturally occuring clay which is capable of exchanging cations
B.	Abrasive material
C.	Catalyst used in shift conversion
D.	None of these
Answer» B. Abrasive material

Discussion

194.	/_The enzyme which converts starch into the disacharides maltose is?
A.	Diastase
B.	Maltase
C.	Yeast
D.	None of these
Answer» B. Maltase

Discussion

195.	/_Which of the following is not a product of coal tar distillation??
A.	Anthracene
B.	Cresote oil
C.	Carbolic oil
D.	None of these
Answer» E.

Discussion

196.	/_Which of the following fuel gases contains maximum amount of carbon monoxide??
A.	Coke oven gas
B.	Water gas
C.	Blast furnace gas
D.	L.D. converter gas
Answer» E.

Discussion

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

Discussion

198.	/_An alkali metal salt of palmitic acid is known as?
A.	Soap
B.	Metallic soap
C.	Detergent
D.	Alkaloid
Answer» C. Detergent

Discussion

199.	/_Air used in aerobic fermentation must be sterilized, otherwise the?
A.	Recovery of product will be difficult
B.	Contamination of pure culture would result
C.	Uniformity of product cannot be achieved
D.	None of these
Answer» C. Uniformity of product cannot be achieved

Discussion

200.	/_Sucrose is a?
A.	Monosacchride
B.	Disacchride
C.	Polysacchride
D.	None of these
Answer» C. Polysacchride

Discussion

Explore topic-wise MCQs in Chemical Engineering.

*/*_Digestion of wood-base materials (for manufacture of pulp) is done to?

*/*_Analgesic drugs are?

*/*_Presence of carbonaceous matter in the sewage?

*/*_Temperature during hydrogenation of oil should not be more than 200¬¨‚àûC, otherwise it will result in?

*/*_Which of the following is not responsible for causing permanent hardness of water??

*/*_Nickel is not used as a catalyst in the?

*/*_Which of the following processes does not produce Cl‚Äö√á√á as a co-product during the manufacture of caustic soda??

*/*_Yeast is used in the manufacture of?

*/*_Reaction of calcium carbide with water produces a gas, which is used?

*/*_Manufacture of phthalic anhydride uses __________ as a catalyst.?

*/*_Catalyst used in the hydrogenation of oil is?

*/*_Esterification reaction?

*/*_Alcohol is produced by the?

*/*_Which of the following is used as a binding material in soap to improve soap texture??

*/*_Process conditions in fermentator used for production of penicillin is?

*/*_Reverse osmosis is normally used for the?

*/*_Hydrophilic group of a soap or detergent solution is?

*/*_Sugar content in sugarcane on cane basis is about __________ percent by weight.?

*/*_The catalyst used in shift converter is?

*/*_Highly porous refractory bricks are?

*/*_Wax is a?

*/*_Viscose rayon is?

*/*_In the production of soda ash by Solvay process, the by-product is?

*/*_Titanium dioxide is a/an __________ colour pigment.?

*/*_Free alkali in a toilet soap is __________ that in a laundary shop.?

*/*_Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.?

*/*_Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ ¬¨‚àûC.?

*/*_Dechlorination of treated water is necessary to?

*/*_Which glass is usually used in optical work??

*/*_The most economical pulp for the production of newsprint would be the __________ pulp.?

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

*/*_Fat dispersed in water is exemplified by?

*/*_Average sulphur content in Indian pyrites is about __________ percent.?

*/*___________ is used as a catalyst in fat splitting.?

*/*_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?

*/*_Chemical name of 'alum' is?

*/*_The difference between saponification value and acid value is?

*/*_CaO is called?

*/*_The end bleaching agent used to move last traces of colour bodies from the pulp is?

*/*_Which of the following is used as a coagulant in water treatment??

*/*_Thermosetting materials?

*/*_Zeolite is a/an?

*/*_The enzyme which converts starch into the disacharides maltose is?

*/*_Which of the following is not a product of coal tar distillation??

*/*_Which of the following fuel gases contains maximum amount of carbon monoxide??

*/*_Pick out the wrong statement.?

*/*_An alkali metal salt of palmitic acid is known as?

*/*_Air used in aerobic fermentation must be sterilized, otherwise the?

*/*_Sucrose is a?

/_Digestion of wood-base materials (for manufacture of pulp) is done to?

/_Analgesic drugs are?

/_Presence of carbonaceous matter in the sewage?

/_Temperature during hydrogenation of oil should not be more than 200¬¨‚àûC, otherwise it will result in?

/_Which of the following is not responsible for causing permanent hardness of water??

/_Nickel is not used as a catalyst in the?

/_Which of the following processes does not produce Cl‚Äö√á√á as a co-product during the manufacture of caustic soda??

/_Yeast is used in the manufacture of?

/_Reaction of calcium carbide with water produces a gas, which is used?

/_Manufacture of phthalic anhydride uses __________ as a catalyst.?

/_Catalyst used in the hydrogenation of oil is?

/_Esterification reaction?

/_Alcohol is produced by the?

/_Which of the following is used as a binding material in soap to improve soap texture??

/_Process conditions in fermentator used for production of penicillin is?

/_Reverse osmosis is normally used for the?

/_Hydrophilic group of a soap or detergent solution is?

/_Sugar content in sugarcane on cane basis is about __________ percent by weight.?

/_The catalyst used in shift converter is?

/_Highly porous refractory bricks are?

/_Wax is a?

/_Viscose rayon is?

/_In the production of soda ash by Solvay process, the by-product is?

/_Titanium dioxide is a/an __________ colour pigment.?

/_Free alkali in a toilet soap is __________ that in a laundary shop.?

/_Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.?

/_Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ ¬¨‚àûC.?

/_Dechlorination of treated water is necessary to?

/_Which glass is usually used in optical work??

/_The most economical pulp for the production of newsprint would be the __________ pulp.?

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

/_Fat dispersed in water is exemplified by?

/_Average sulphur content in Indian pyrites is about __________ percent.?

/___________ is used as a catalyst in fat splitting.?

/_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?

/_Chemical name of 'alum' is?

/_The difference between saponification value and acid value is?

/_CaO is called?

/_The end bleaching agent used to move last traces of colour bodies from the pulp is?

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

/_Thermosetting materials?

/_Zeolite is a/an?

/_The enzyme which converts starch into the disacharides maltose is?

/_Which of the following is not a product of coal tar distillation??

/_Which of the following fuel gases contains maximum amount of carbon monoxide??

/_Pick out the wrong statement.?

/_An alkali metal salt of palmitic acid is known as?

/_Air used in aerobic fermentation must be sterilized, otherwise the?

/_Sucrose is a?