Phthalic anhydride is produced by the oxidation of
Naphthalene
Benzene
Toluene
Aniline
Correct Answer :
B. Benzene
Related Questions
Which of the following sugars is the sweetest?
Glucose
Fructose
Sucrose
Lactose
Litharge is
Lead oxide
Zinc oxide
Zinc sulphide
Cellulosic photographic material
Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?
Slag cement
Glasses
Porcelain/Potteries
Teflon
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
Teflon
Bakelite
Polyester
Nylon-66
__________ glass is used for the manufacture of optical glass.
Pyrex
Soda
Flint
Crooke's
The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.
Cationic
Anionic
Amphoteric
Semi polar
Ethanol amine is produced using ammonia and
Ethyl benzene
Ethylene oxide
Ethanol
Ethane
Baking soda is chemically represented by
Na2CO3
NaHCO3
Na2CO3.H2O
Na2CO3.10H2O
99.5% purity oxygen is used in
Cutting and welding by oxy-acetylene flame
Hospitals for medicinal purposes
Gas masks and artificial breathing apparatus
All (A), (B), and (C)
Kopper-Totzek coal gasifier
Can give ammonia synthesis gas (H2 + N2)
Is a moving bed reactor
Cannot use coking coal
Operate at very high pressure
Solvent used for extraction of oil is
Hexane
Methyl ethyl ketone
Furfural
None of these
Cumene is the starting material for the production of
Benzoic acid
Phenol and acetone
Isoprene
Styrene
The biochemical treatment applied to sewage effluents is a process of
Dehydration
Reduction
Oxidation
Polymerisation
'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of
Final rolling out of paper
Cutting of fibres
Hydration of fibres
Fibrillation of fibre
Terylene is
Same as Dacron
A polyester
Both (A) & (B)
Neither (A) nor (B)
Pure rectified spirit contains about __________ percent alcohol.
45
70
95
99.5
Shaving soaps are
Soft potassium soaps (potassium salt of fatty acid) with free Stearic acid to give lather a lasting property
Metallic soaps compounded with frothing agents
High free alkali soaps having excess of cane sugar and alcohol
None of these
The main component of Pyrex glass is
Zinc
Lead
Boron
Selenium
Low purity oxygen is used for
L.D. steel making
Cutting and welding of metals
Medicinal purposes
Chemical oxidation processes
Digestion of wood-base materials (for manufacture of pulp) is done to
Remove lignin
Produce long fibres
Prevent deterioration on storage
None of these
Sodium carbonate (soda ash) is not used in the manufacture of
Fire extinguishers
Sugar
Baking powder
Detergents
Dehydrogenation of Isopropanol produces
Propyl alcohol
Acetone
Trichloroethylene
Formaldehyde
Which of the following is not a pyrite ore?
Celestite
Galena
Gypsum
Siderite
The catalyst used in shift converter is
Nickel
Vanadium
Silica gel
Alumina
Nylon-66 is manufactured from
Hexamethylene diamine and adipic acid
Hexamethylene diamine and Maleic anhydride
Caprolactam
Dimethyl terephthalate and ethylene glycol
Which of the following is not an antibiotic?
Penicillin
Streptomycin
Tetracycline
Quinine
More than 100 percent of __________ is present in oleum.
SO3
H2SO4
H2SO3
SO2
Calgon used in water treatment is chemically
Sodium phosphate
Sodium hexametaphosphate
Calcium phosphate
Tricresyl phosphate
Favourable conditions for the liquefaction of gases in general are
High pressure & low temperature
Low pressure & high temperature
High pressure & high temperature
Low pressure & low temperature
Hydrocyanic acid (HCN) is used as an insecticide for
Controlling timber degradation by ants
Controlling poultry lice
Potato beetle
Citrus fruits