565 + Mcqs in Chemical Process Page 10 McqOptions

451.	Major component of flint glass is$?
A.	Lead oxide
B.	Silica
C.	Alumina
D.	Soda
Answer» B. Silica

Discussion

452.	Which of the following, when pyrolysed, produces perchloro-ethylene?$?
A.	Ethylene dichloride
B.	Chlorobenzene
C.	Carbon tetrachloride
D.	Chlorinated paraffin
Answer» D. Chlorinated paraffin

Discussion

453.	Hydrazine (N‚Äö√á√áH‚Äö√á√ë) is used mainly as a/an$?
A.	Explosive
B.	Rocket fuel
C.	Detergents additive
D.	None of these
Answer» C. Detergents additive

Discussion

454.	Alkylbenzene sulfonate (ABS) is a$?
A.	Detergent
B.	Rubber
C.	Pesticide
D.	Polyester
Answer» B. Rubber

Discussion

455.	Higher vicosity index of a lubricating oil denotes$?
A.	Less changes in fluidity of oil with temperature
B.	Substantially high change in fluidity of oil with temperature
C.	Its unsuitability under varying temperature conditions
D.	None of these
Answer» B. Substantially high change in fluidity of oil with temperature

Discussion

456.	The biochemical treatment applied to sewage effluents is a process of$?
A.	Dehydration
B.	Reduction
C.	Oxidation
D.	Polymerisation
Answer» D. Polymerisation

Discussion

457.	Refractory bricks burnt at very high temperature have got$?
A.	Greater resistance to corrosion by slags
B.	Less resistance to corrosion by slags
C.	High spalling tendency
D.	None of these
Answer» B. Less resistance to corrosion by slags

Discussion

458.	Varnish does not contain$?
A.	Thinner
B.	Pigment
C.	Both A & B
D.	Neither A nor B
Answer» C. Both A & B

Discussion

459.	Phthalic anhydride is produced by the oxidation of$?
A.	Naphthalene
B.	Benzene
C.	Toluene
D.	Aniline
Answer» C. Toluene

Discussion

460.	Hydrodenation of vegetable oils is a/an __________ reaction.$?
A.	Endothermic
B.	Autocatalytic
C.	Exothermic
D.	Homogenous
Answer» D. Homogenous

Discussion

461.	Hydrogenation of oil/fat does not$?
A.	Improve its resistance to rancid oxidation
B.	Raise its melting point
C.	Remove double bonds
D.	None of these
Answer» E.

Discussion

462.	Proximate analysis of coal determines its __________ content.$?
A.	Moisture, ash, sulphur & volatile matter
B.	Moisture & volatile matter
C.	Moisture, sulphur, nitrogen & fixed carbon
D.	None of these
Answer» C. Moisture, sulphur, nitrogen & fixed carbon

Discussion

463.	Riboflavin is a/an$?
A.	Vitamin
B.	Analgesic drug
C.	Anaesthetics
D.	Anti-malarial drug
Answer» B. Analgesic drug

Discussion

464.	Which allotrope of sulphur is insoluble in carbon disulphide?$?
A.	Rhombic sulphur
B.	Monoclinic sulphur
C.	Plastic sulphur
D.	Milk of sulphur
Answer» D. Milk of sulphur

Discussion

465.	Glauber's salt is chemically represented by$?
A.	Na‚Äö√á√áSO‚Äö√á√ë.10H‚Äö√á√áO
B.	CaCl(OCl)
C.	CaSO‚Äö√á√ë.H‚Äö√á√áO
D.	(NH‚Äö√á√ë)‚Äö√á√áSO‚Äö√á√ë
Answer» B. CaCl(OCl)

Discussion

466.	Systemic insecticides$?
A.	Are absorbed throughout the plant
B.	Kill insects following external bodily contact
C.	Are stomach poisons
D.	Emit poisonous vapour
Answer» B. Kill insects following external bodily contact

Discussion

467.	Main constituents of natural rubber is$?
A.	Polystyrene
B.	Polyisoprene
C.	Polybutadiene
D.	Polychloroprene
Answer» C. Polybutadiene

Discussion

468.	Most widely and commonly used coagulant for the removal of suspended impurities in water is$?
A.	Bleaching powder
B.	Slaked lime
C.	Alum
D.	Copper sulphate
Answer» D. Copper sulphate

Discussion

469.	Which of the following is a detergent?$?
A.	Benzene hexachloride
B.	Alkyl benzene sulphonate
C.	Polytetraflouroethylene
D.	Cellulose nitrate
Answer» C. Polytetraflouroethylene

Discussion

470.	Esterification reaction produces$?
A.	Detergent
B.	Vanaspati
C.	Soap
D.	Mercaptans
Answer» D. Mercaptans

Discussion

471.	Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its$?
A.	Poor oxidation stability and high gum forming tendency
B.	Greater tendency of decomposition at elevated temperature
C.	Hydrolysis tendency in presence of water
D.	All of the above
Answer» E.

Discussion

472.	The product obtained on mixing calcium oxide with water is called$?
A.	Quicklime
B.	Slaked lime
C.	Milk of lime
D.	None of these
Answer» C. Milk of lime

Discussion

473.	Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.$?
A.	10
B.	25
C.	50
D.	98
Answer» D. 98

Discussion

474.	Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces$?
A.	Nylon-6
B.	Dacron
C.	Polyester
D.	PVC
Answer» C. Polyester

Discussion

475.	Carbon disulphide is mainly used in the production of$?
A.	Viscose rayon
B.	Corundum
C.	Plasticiser for unsaturated polyester
D.	Paints
Answer» B. Corundum

Discussion

476.	The combustion reaction, C + O‚Äö√á√á = CO‚Äö√á√á, is$?
A.	Exothermic
B.	Endothermic
C.	Autocatalytic
D.	None of these
Answer» B. Endothermic

Discussion

477.	Zeolite used in water softening process (cation exchange) is regenerated by washing with$?
A.	Brine
B.	Chloramines
C.	Sodium bisulphite
D.	Liquid chlorines
Answer» B. Chloramines

Discussion

478.	Solvay process is used for the manufacture of$?
A.	Caustic soda
B.	Soda ash
C.	Caustic potash
D.	Soda lime
Answer» C. Caustic potash

Discussion

479.	Use of chlorine in the treatment of sewage$?
A.	Helps in grease separation
B.	Increases the biological oxygen demand(BOD)
C.	Causes bulking of activated sludge
D.	Aids in flocculation
Answer» B. Increases the biological oxygen demand(BOD)

Discussion

480.	Proximate analysis of coal determines its __________ content.?
A.	Moisture, ash, sulphur & volatile matter
B.	Moisture & volatile matter
C.	Moisture, sulphur, nitrogen & fixed carbon
D.	None of these
Answer» C. Moisture, sulphur, nitrogen & fixed carbon

Discussion

481.	Riboflavin is a/an?
A.	Vitamin
B.	Analgesic drug
C.	Anaesthetics
D.	Anti-malarial drug
Answer» B. Analgesic drug

Discussion

482.	Hydrodenation of vegetable oils is a/an __________ reaction.?
A.	Endothermic
B.	Autocatalytic
C.	Exothermic
D.	Homogenous
Answer» D. Homogenous

Discussion

483.	Hydrogenation of oil/fat does not?
A.	Improve its resistance to rancid oxidation
B.	Raise its melting point
C.	Remove double bonds
D.	None of these
Answer» E.

Discussion

484.	Phthalic anhydride is produced by the oxidation of?
A.	Naphthalene
B.	Benzene
C.	Toluene
D.	Aniline
Answer» C. Toluene

Discussion

485.	'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of?
A.	N‚Äö√á√á & H‚Äö√á√á
B.	CO‚Äö√á√á & H‚Äö√á√á
C.	CO & H‚Äö√á√á
D.	C & H‚Äö√á√á
Answer» D. C & H‚Äö√á√á

Discussion

486.	Hydrazine is used in water treatment for the removal of?
A.	Colloidal impurities
B.	Dissolved oxygen
C.	Turbidity
D.	Chlorinous taste
Answer» C. Turbidity

Discussion

487.	Conversion of SO‚Äö√á√á to SO‚Äö√á√â in Monsanto 4-pass converter is about __________ percent.?
A.	80
B.	90
C.	98
D.	100
Answer» D. 100

Discussion

488.	Grignard reagent is chemically known as?
A.	Ethyl magnesium chloride
B.	Methyl magnesium chloride
C.	Dichlorophenol
D.	Monochloro acetic acid
Answer» B. Methyl magnesium chloride

Discussion

489.	Absorption of SO‚Äö√á√â in 97% H‚Äö√á√áSO‚Äö√á√ë is?
A.	Exothermic
B.	Endothermic
C.	Not possible
D.	None of these
Answer» B. Endothermic

Discussion

490.	Pick out the true statement pertaining to water treatment.?
A.	Slow sand filters can remove colour completely
B.	Activated carbon can be used for taste & odour control without subsequent filtration
C.	Application of activated carbon reduces the temporary hardness of water
D.	Normally, the turbidity is removed by adding a coagulent prior to sedimentation
Answer» E.

Discussion

491.	Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ ¬¨‚àûC.?
A.	-83
B.	-183
C.	-196
D.	-218
Answer» C. -196

Discussion

492.	The combustion reaction, C + O‚Äö√á√á = CO‚Äö√á√á, is?
A.	Exothermic
B.	Endothermic
C.	Autocatalytic
D.	None of these
Answer» B. Endothermic

Discussion

493.	Carbon disulphide is mainly used in the production of?
A.	Viscose rayon
B.	Corundum
C.	Plasticiser for unsaturated polyester
D.	Paints
Answer» B. Corundum

Discussion

494.	Solvay process is used for the manufacture of?
A.	Caustic soda
B.	Soda ash
C.	Caustic potash
D.	Soda lime
Answer» C. Caustic potash

Discussion

495.	Zeolite used in water softening process (cation exchange) is regenerated by washing with?
A.	Brine
B.	Chloramines
C.	Sodium bisulphite
D.	Liquid chlorines
Answer» B. Chloramines

Discussion

496.	Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.?
A.	10
B.	25
C.	50
D.	98
Answer» D. 98

Discussion

497.	The product obtained on mixing calcium oxide with water is called?
A.	Quicklime
B.	Slaked lime
C.	Milk of lime
D.	None of these
Answer» C. Milk of lime

Discussion

498.	Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces?
A.	Nylon-6
B.	Dacron
C.	Polyester
D.	PVC
Answer» C. Polyester

Discussion

499.	Use of chlorine in the treatment of sewage?
A.	Helps in grease separation
B.	Increases the biological oxygen demand(BOD)
C.	Causes bulking of activated sludge
D.	Aids in flocculation
Answer» B. Increases the biological oxygen demand(BOD)

Discussion

500.	Neoprene is the trade name of?
A.	Polyurathane
B.	Phenol formaldehyde
C.	Polychloroprene
D.	Styrene-butadiene rubber
Answer» D. Styrene-butadiene rubber

Discussion

Explore topic-wise MCQs in Chemical Engineering.

Major component of flint glass is$?

Which of the following, when pyrolysed, produces perchloro-ethylene?$?

Hydrazine (N‚Äö√á√áH‚Äö√á√ë) is used mainly as a/an$?

Alkylbenzene sulfonate (ABS) is a$?

Higher vicosity index of a lubricating oil denotes$?

The biochemical treatment applied to sewage effluents is a process of$?

Refractory bricks burnt at very high temperature have got$?

Varnish does not contain$?

Phthalic anhydride is produced by the oxidation of$?

Hydrodenation of vegetable oils is a/an __________ reaction.$?

Hydrogenation of oil/fat does not$?

Proximate analysis of coal determines its __________ content.$?

Riboflavin is a/an$?

Which allotrope of sulphur is insoluble in carbon disulphide?$?

Glauber's salt is chemically represented by$?

Systemic insecticides$?

Main constituents of natural rubber is$?

Most widely and commonly used coagulant for the removal of suspended impurities in water is$?

Which of the following is a detergent?$?

Esterification reaction produces$?

Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its$?

The product obtained on mixing calcium oxide with water is called$?

Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.$?

Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces$?

Carbon disulphide is mainly used in the production of$?

The combustion reaction, C + O‚Äö√á√á = CO‚Äö√á√á, is$?

Zeolite used in water softening process (cation exchange) is regenerated by washing with$?

Solvay process is used for the manufacture of$?

Use of chlorine in the treatment of sewage$?

Proximate analysis of coal determines its __________ content.?

Riboflavin is a/an?

Hydrodenation of vegetable oils is a/an __________ reaction.?

Hydrogenation of oil/fat does not?

Phthalic anhydride is produced by the oxidation of?

'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of?

Hydrazine is used in water treatment for the removal of?

Conversion of SO‚Äö√á√á to SO‚Äö√á√â in Monsanto 4-pass converter is about __________ percent.?

Grignard reagent is chemically known as?

Absorption of SO‚Äö√á√â in 97% H‚Äö√á√áSO‚Äö√á√ë is?

Pick out the true statement pertaining to water treatment.?

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ ¬¨‚àûC.?

The combustion reaction, C + O‚Äö√á√á = CO‚Äö√á√á, is?

Carbon disulphide is mainly used in the production of?

Solvay process is used for the manufacture of?

Zeolite used in water softening process (cation exchange) is regenerated by washing with?

Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.?

The product obtained on mixing calcium oxide with water is called?

Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces?

Use of chlorine in the treatment of sewage?

Neoprene is the trade name of?