565 + Mcqs in Chemical Process Page 3 McqOptions

101.	/_Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an?
A.	Explosive
B.	Soap
C.	Detergent
D.	Analgesic drug
Answer» D. Analgesic drug

Discussion

102.	/_Cation exchanger is regenerated usually with?
A.	NaOH
B.	H‚Äö√á√áSO‚Äö√á√ë
C.	Hydrazine
D.	Alum solution
Answer» C. Hydrazine

Discussion

103.	/_Sea weeds are an important source of?
A.	Fluorine
B.	Chlorine
C.	Bromine
D.	Iodine
Answer» E.

Discussion

104.	/_The most widely used coagulant for removing suspended impurities from water is?
A.	Bleaching powder
B.	Chlorine
C.	Calcium sulphate
D.	Alum
Answer» E.

Discussion

105.	/_Flash point of most vegetable oils is about __________ ¬¨‚àûC.?
A.	50
B.	100
C.	200
D.	300
Answer» D. 300

Discussion

106.	/_Trinitrotoluene (TNT), an explosive, is made by the nitration of?
A.	Nitrobenzene
B.	Toluene
C.	Nitrotoluene
D.	Benzene
Answer» C. Nitrotoluene

Discussion

107.	/_Nitrile rubber is produced by the polymerisation of?
A.	Acrylonitrile and butadiene
B.	Acrylonitrile and styrene
C.	Isobutylene and isoprene
D.	None of these
Answer» B. Acrylonitrile and styrene

Discussion

108.	/_Bisphenol A is produced by the condensation of acetone with?
A.	Formaldehyde
B.	Ethyl alcohol
C.	Diethyl ether
D.	Phenol
Answer» E.

Discussion

109.	/_Nylon-6 as compared to Nylon-66 is having higher?
A.	Hardness
B.	Abrasion/resistance
C.	Melting point
D.	None of these
Answer» E.

Discussion

110.	/_Economics of 'Solvay Process' depends upon the efficiency of?
A.	Carbonating tower
B.	Ammonia recovery
C.	Ammonia recovery and size of the plant
D.	Ammoniation of salt solution
Answer» D. Ammoniation of salt solution

Discussion

111.	/_Carboxymethyl cellulose (CMC) is added in detergents to act as a/an?
A.	Surfactant
B.	Builder
C.	Optical brightening agent
D.	Anti soil redeposition agent
Answer» E.

Discussion

112.	/_Massacuits is a terminology used in the __________ industry.?
A.	Paint
B.	Oil hydrogenation
C.	Soap
D.	Sugar
Answer» E.

Discussion

113.	/_Litharge is?
A.	Lead oxide
B.	Zinc oxide
C.	Zinc sulphide
D.	Cellulosic photographic material
Answer» B. Zinc oxide

Discussion

114.	/_Nylon 66 is so named because the?
A.	Average degree of polymerisation of the polymer is 1966
B.	Number of carbon atoms between two nitrogen atoms are 6
C.	Number of nitrogen atoms between two carbon atoms are 6
D.	Polymer was first synthesised in 1966
Answer» B. Number of carbon atoms between two nitrogen atoms are 6

Discussion

115.	/_Concentration of sulphide ores is done usually by?
A.	Roasting
B.	Smelting
C.	Froth floatation
D.	Electro magnetic separation
Answer» D. Electro magnetic separation

Discussion

116.	/_Which of the following is not a raw material used for the manufacture of ordinary glass??
A.	Iron oxide
B.	Soda ash
C.	Limestone
D.	Silica
Answer» B. Soda ash

Discussion

117.	/_Flexible foam (for mattresses) is usually made of?
A.	PVC
B.	Silicone
C.	Polyurethanes
D.	Polyamides
Answer» D. Polyamides

Discussion

118.	/_Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc??
A.	Sodium silicate
B.	Sodium borate
C.	Sodium tripolyphosphate (STPP)
D.	Caustic soda
Answer» C. Sodium tripolyphosphate (STPP)

Discussion

119.	/_Which of the following contains least amount of N‚Äö√á√á??
A.	Coke oven gas
B.	Blast furnace gas
C.	Producer gas
D.	Water gas (blue gas)
Answer» B. Blast furnace gas

Discussion

120.	/_Dichloro diphenyl __________ is the full form of DDT (an insecticide).?
A.	Tetrachloroethane
B.	Trichloroethane
C.	Tetrachloromethane
D.	Trichloromethane
Answer» C. Tetrachloromethane

Discussion

121.	/_Rotary kiln is not involved in the production of?
A.	Cement
B.	Lime from limestone
C.	Slaked lime from quick lime
D.	None of these
Answer» D. None of these

Discussion

122.	/_Carbon content of pitch (residue of coal tar distillation) is around __________ percent.?
A.	70
B.	55
C.	80
D.	94
Answer» E.

Discussion

123.	/_Sodium bisulphite is used for __________ water.?
A.	Deaeration
B.	Dechlorination
C.	Both A & B
D.	Neither A nor B
Answer» D. Neither A nor B

Discussion

124.	/_Phenolic antiseptics are added in the __________ soap.?
A.	Shaving
B.	Medicated
C.	Metallic
D.	Transparent
Answer» C. Metallic

Discussion

125.	/___________ is produced using molasses as the starting raw material.?
A.	Methyl alcohol
B.	Ethyl alcohol
C.	Benzol
D.	Dimethyl ether
Answer» C. Benzol

Discussion

126.	/_Synthetic glycerine is produced from?
A.	Toluene
B.	Phenol
C.	Propylene
D.	Naphthalene
Answer» D. Naphthalene

Discussion

127.	/_Thorium is mainly used?
A.	For the manufacture of gas mantles
B.	As a fissile fuel in a nuclear reactor
C.	In the manufacture of hydrogen bomb
D.	In the treatment of cancer
Answer» B. As a fissile fuel in a nuclear reactor

Discussion

128.	/_Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it?
A.	Has larger production capacity per unit cell
B.	Consumes less power per ton of Cl‚Äö√á√á produced
C.	Produces high purity (70%) caustic soda directly
D.	All of the above
Answer» E.

Discussion

129.	/_Trinitro-toluene (TNT) is?
A.	Used in glycerine manufacture
B.	An explosive
C.	Used in dye manufacture
D.	None of these
Answer» C. Used in dye manufacture

Discussion

130.	/_Potassium is kept & transported under?
A.	Water
B.	Liquid ammonia
C.	Kerosene oil
D.	Alcohol
Answer» D. Alcohol

Discussion

131.	/_Styrene-butadiene-rubber (SBR) as compared to natural rubber has?
A.	Poorer tensile strength
B.	Poorer resistance to oxidation
C.	Greater amount of heat build-up under heavy loading
D.	All of the above
Answer» E.

Discussion

132.	/_Coal tar is used as a?
A.	Binding material for coal briquettes
B.	Fuel in rotary kiln
C.	Binder in making carbon electrodes
D.	All of the above
Answer» E.

Discussion

133.	/_Chemical name of soda ash is?
A.	Sodium bicarbonate
B.	Sodium thiosulphate
C.	Potassium carbonate
D.	None of these
Answer» E.

Discussion

134.	/_Hydrogenation of oil takes place in a/an __________ reactor.?
A.	Autothermal
B.	Trickle bed
C.	Plug flow
D.	None of these
Answer» C. Plug flow

Discussion

135.	/_High temperature carbonisation of coal produces?
A.	Inferior coke compared to low temperature carbonisation
B.	Less of gases compared to liquid products
C.	Larger quantity of tar compared to low temperature carbonisation
D.	None of these
Answer» E.

Discussion

136.	/_Comparing sulphate process with sulphite process, we find that __________ in the later.?
A.	Both temperature & pressure in the former is less than that
B.	Both temperature & pressure in the former is more than that
C.	Temperature is more in the former whereas pressure is more
D.	Pressure is more in the former whereas temperature is less
Answer» C. Temperature is more in the former whereas pressure is more

Discussion

137.	/___________ nature of hypo (sodium thiosulphate) makes it useful in photography.?
A.	Oxidising
B.	Reducing
C.	Complex forming
D.	Photochemical
Answer» D. Photochemical

Discussion

138.	/_Polycaprolactum is commercially known as?
A.	Nylon-6
B.	Nylon-66
C.	Dacron
D.	Rayon
Answer» B. Nylon-66

Discussion

139.	/_Washing soda is chemically represented by?
A.	Na‚Äö√á√áCO‚Äö√á√â
B.	Na‚Äö√á√áCO‚Äö√á√â.H‚Äö√á√áO
C.	Na‚Äö√á√áCO‚Äö√á√â.10H‚Äö√á√áO
D.	NaHCO‚Äö√á√â
Answer» D. NaHCO‚Äö√á√â

Discussion

140.	/_10% oleum comprises of 10% free?
A.	SO‚Äö√á√á
B.	H‚Äö√á√áSO‚Äö√á√â
C.	SO‚Äö√á√â
D.	H‚Äö√á√áSO‚Äö√á√ë
Answer» D. H‚Äö√á√áSO‚Äö√á√ë

Discussion

141.	/_The purpose of adding Na‚Äö√á√áCO‚Äö√á√â to water of low alkalinity is to?
A.	Permit the use of alum as a coagulant
B.	Increase the softening capacity of zeolite
C.	Facilitate easy regeneration of zeolite
D.	All of the above
Answer» B. Increase the softening capacity of zeolite

Discussion

142.	/_Deaeration of water in its treatment is necessary, as it?
A.	Minimises its turbidity
B.	Helps in controlling its taste and odour
C.	Minimises its corrosiveness
D.	None of these
Answer» D. None of these

Discussion

143.	/_Dense soda ash used in the manufacture of glass, is chemically represented by?
A.	Na‚Äö√á√áCO‚Äö√á√â
B.	Na‚Äö√á√áCO‚Äö√á√â.10H‚Äö√á√áO
C.	Na‚Äö√á√áCO‚Äö√á√â.H‚Äö√á√áO
D.	Na‚Äö√á√áHCO‚Äö√á√â
Answer» D. Na‚Äö√á√áHCO‚Äö√á√â

Discussion

144.	/_Solvay process as compared to dual process (i.e. modified Solvay process)?
A.	Can use low grade brine
B.	Has less corrosion problems
C.	Involves higher investment in NH‚Äö√á√â recovery units than that for crystallisation units for NH‚Äö√á√ëCl
D.	Both B and C
Answer» E.

Discussion

145.	/_Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.?
A.	CaO
B.	MnO‚Äö√á√á
C.	ZnO
D.	FeS
Answer» D. FeS

Discussion

146.	/_Consider the production of ammonia from methene and air as raw materials. The catalyst used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis.?
A.	(i) - Ni/Al2O‚Äö√á√â; (ii) - Cu - ZnO/Al2O‚Äö√á√â
B.	(i) - Fe/Al2O‚Äö√á√â; (ii) - Cu - ZnO/Al2O‚Äö√á√â
C.	(i) - Ni/Al2O‚Äö√á√â; (ii) - Fe/Al2O‚Äö√á√â
D.	(i) - Fe/Al2O‚Äö√á√â; (ii) - Ni/Al2O‚Äö√á√â
Answer» D. (i) - Fe/Al2O‚Äö√á√â; (ii) - Ni/Al2O‚Äö√á√â

Discussion

147.	/_The temperature in the calcium carbide furnace is __________ ¬¨‚àûC.?
A.	200-300
B.	700-850
C.	2000-2200
D.	4000-4500
Answer» D. 4000-4500

Discussion

148.	/_Rancidity of the fatty oil can be reduced by its?
A.	Decoloration
B.	Hydrogenation
C.	Oxidation
D.	Purification
Answer» C. Oxidation

Discussion

149.	/_Carbon tetrachloride (CCl‚Äö√á√ë) is the starting raw material for the manufacture of?
A.	Trichloroethylene
B.	Perchloroethylene
C.	Parathion
D.	Methanol
Answer» C. Parathion

Discussion

150.	/_Chemical name of aspirin (an analgesic drug) is?
A.	Acetylsalicylic acid
B.	Nictonic acid
C.	Calcium acetate
D.	Methyl salicylate
Answer» B. Nictonic acid

Discussion

Explore topic-wise MCQs in Chemical Engineering.

*/*_Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an?

*/*_Cation exchanger is regenerated usually with?

*/*_Sea weeds are an important source of?

*/*_The most widely used coagulant for removing suspended impurities from water is?

*/*_Flash point of most vegetable oils is about __________ ¬¨‚àûC.?

*/*_Trinitrotoluene (TNT), an explosive, is made by the nitration of?

*/*_Nitrile rubber is produced by the polymerisation of?

*/*_Bisphenol A is produced by the condensation of acetone with?

*/*_Nylon-6 as compared to Nylon-66 is having higher?

*/*_Economics of 'Solvay Process' depends upon the efficiency of?

*/*_Carboxymethyl cellulose (CMC) is added in detergents to act as a/an?

*/*_Massacuits is a terminology used in the __________ industry.?

*/*_Litharge is?

*/*_Nylon 66 is so named because the?

*/*_Concentration of sulphide ores is done usually by?

*/*_Which of the following is not a raw material used for the manufacture of ordinary glass??

*/*_Flexible foam (for mattresses) is usually made of?

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

*/*_Which of the following contains least amount of N‚Äö√á√á??

*/*_Dichloro diphenyl __________ is the full form of DDT (an insecticide).?

*/*_Rotary kiln is not involved in the production of?

*/*_Carbon content of pitch (residue of coal tar distillation) is around __________ percent.?

*/*_Sodium bisulphite is used for __________ water.?

*/*_Phenolic antiseptics are added in the __________ soap.?

*/*___________ is produced using molasses as the starting raw material.?

*/*_Synthetic glycerine is produced from?

*/*_Thorium is mainly used?

*/*_Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it?

*/*_Trinitro-toluene (TNT) is?

*/*_Potassium is kept & transported under?

*/*_Styrene-butadiene-rubber (SBR) as compared to natural rubber has?

*/*_Coal tar is used as a?

*/*_Chemical name of soda ash is?

*/*_Hydrogenation of oil takes place in a/an __________ reactor.?

*/*_High temperature carbonisation of coal produces?

*/*_Comparing sulphate process with sulphite process, we find that __________ in the later.?

*/*___________ nature of hypo (sodium thiosulphate) makes it useful in photography.?

*/*_Polycaprolactum is commercially known as?

*/*_Washing soda is chemically represented by?

*/*_10% oleum comprises of 10% free?

*/*_The purpose of adding Na‚Äö√á√áCO‚Äö√á√â to water of low alkalinity is to?

*/*_Deaeration of water in its treatment is necessary, as it?

*/*_Dense soda ash used in the manufacture of glass, is chemically represented by?

*/*_Solvay process as compared to dual process (i.e. modified Solvay process)?

*/*_Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.?

*/*_Consider the production of ammonia from methene and air as raw materials. The catalyst used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis.?

*/*_The temperature in the calcium carbide furnace is __________ ¬¨‚àûC.?

*/*_Rancidity of the fatty oil can be reduced by its?

*/*_Carbon tetrachloride (CCl‚Äö√á√ë) is the starting raw material for the manufacture of?

*/*_Chemical name of aspirin (an analgesic drug) is?

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

/_Cation exchanger is regenerated usually with?

/_Sea weeds are an important source of?

/_The most widely used coagulant for removing suspended impurities from water is?

/_Flash point of most vegetable oils is about __________ ¬¨‚àûC.?

/_Trinitrotoluene (TNT), an explosive, is made by the nitration of?

/_Nitrile rubber is produced by the polymerisation of?

/_Bisphenol A is produced by the condensation of acetone with?

/_Nylon-6 as compared to Nylon-66 is having higher?

/_Economics of 'Solvay Process' depends upon the efficiency of?

/_Carboxymethyl cellulose (CMC) is added in detergents to act as a/an?

/_Massacuits is a terminology used in the __________ industry.?

/_Litharge is?

/_Nylon 66 is so named because the?

/_Concentration of sulphide ores is done usually by?

/_Which of the following is not a raw material used for the manufacture of ordinary glass??

/_Flexible foam (for mattresses) is usually made of?

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

/_Which of the following contains least amount of N‚Äö√á√á??

/_Dichloro diphenyl __________ is the full form of DDT (an insecticide).?

/_Rotary kiln is not involved in the production of?

/_Carbon content of pitch (residue of coal tar distillation) is around __________ percent.?

/_Sodium bisulphite is used for __________ water.?

/_Phenolic antiseptics are added in the __________ soap.?

/___________ is produced using molasses as the starting raw material.?

/_Synthetic glycerine is produced from?

/_Thorium is mainly used?

/_Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it?

/_Trinitro-toluene (TNT) is?

/_Potassium is kept & transported under?

/_Styrene-butadiene-rubber (SBR) as compared to natural rubber has?

/_Coal tar is used as a?

/_Chemical name of soda ash is?

/_Hydrogenation of oil takes place in a/an __________ reactor.?

/_High temperature carbonisation of coal produces?

/_Comparing sulphate process with sulphite process, we find that __________ in the later.?

/___________ nature of hypo (sodium thiosulphate) makes it useful in photography.?

/_Polycaprolactum is commercially known as?

/_Washing soda is chemically represented by?

/_10% oleum comprises of 10% free?

/_The purpose of adding Na‚Äö√á√áCO‚Äö√á√â to water of low alkalinity is to?

/_Deaeration of water in its treatment is necessary, as it?

/_Dense soda ash used in the manufacture of glass, is chemically represented by?

/_Solvay process as compared to dual process (i.e. modified Solvay process)?

/_Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.?

/_Consider the production of ammonia from methene and air as raw materials. The catalyst used are: (i) for steam reforming of methane and (ii) for ammonia synthesis.?

/_The temperature in the calcium carbide furnace is __________ ¬¨‚àûC.?

/_Rancidity of the fatty oil can be reduced by its?

/_Carbon tetrachloride (CCl‚Äö√á√ë) is the starting raw material for the manufacture of?

/_Chemical name of aspirin (an analgesic drug) is?