Catalytic oxidation-dehydrogenation of methyl alcohol produces
Formaldehyde
Phenol
Acetone
Maleic anhydride
Correct Answer :
A. Formaldehyde
Related Questions
Starting raw material for the manufacture of alum is
Alumina
Gypsum
Bauxite
Ammonium bicarbonate
Pick out the wrong statement.
Kraft method of pulp manufacture can process all types of fibrous raw materials
Digestion time for bagasse is less than that for wood base materials
Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method
None of these
Hard water
Does not affect the lather formation by soap
Is not unfit for drinking purpose
Pollutes the water stream
All (A), (B) and (C)
The most commonly used substance to speed up the sedimentation of sewage is
Lime
Sulphuric acid
Chlorine
Sodium bisulphite
Which of the following sugars is the sweetest?
Glucose
Fructose
Sucrose
Lactose
Which one of the following is not likely to be a constituent of vegetable oils?
Citric acid
Oleic acid
Stearic acid
Glycerol
Raw materials used for producing __________ cement does not contain iron oxide.
Waterproof
Slag
White
Pozzolan
Use of chlorine in the treatment of sewage
Helps in grease separation
Increases the biological oxygen demand (BOD)
Causes bulking of activated sludge
Aids in flocculation
Which of the following is a constituent of coffee?
Caffeine
Nicotine
Calgon
Lignin
Calgon used in water treatment is chemically
Sodium phosphate
Sodium hexametaphosphate
Calcium phosphate
Tricresyl phosphate
Nylon-6 is a
Polyamide
Thermosetting resin
Polyester
None of these
Main constituent of limestone is
CaCO3
MgCO3
Na2CO3
CaSO4
Digestion of wood-base materials (for manufacture of pulp) is done to
Remove lignin
Produce long fibres
Prevent deterioration on storage
None of these
Phthalic anhydride is produced by the oxidation of
Naphthalene
Benzene
Toluene
Aniline
Which of the following is not a pyrite ore?
Celestite
Galena
Gypsum
Siderite
Systemic insecticides
Are absorbed throughout the plant
Kill insects following external bodily contact
Are stomach poisons
Emit poisonous vapour
Salt is the basic raw material for the manufacture of
Cement
Glass
Potteries
Caustic soda
Which one of the following is not an elastomer?
Polyisoprene
Neoprene
Nitrile-butadiene
None of these
Conversion of CO to CO2 by steam in presence of a catalyst is called
Steam reforming
Shift conversion
Steam gasification
None of these
Polycaprolactam is commercially known as
Nylon-6
Nylon-66
Dacron
Rayon
Starting material for the production of butadiene in India is
Naphthalene
Benzol
Ethyl alcohol
Phthalic anhydride
Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
Adsorbs
Oxidises
Reduces
Converts
Black liquor is converted into white liquor by
Evaporation and burning the concentrate followed by causticisation of products
Multi-effect evaporation only
Selective liquid extraction
Extractive distillation
Which of the following processes can remove both temporary as well as permanent hardness of water?
Filtration
Boiling
Distillation
None of these
Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
L.D. converter
Blast furnace
Rotary kiln
Recuperator
White phosphorous is stored under water, because
It does not react with water
It is poisonous
Its kindling temperature in dry air is very low
It is unstable
In industrial nomenclature, alcohol means
Butyl alcohol
Propyl alcohol
Ethanol
Methyl alcohol
Hydrogenation of oil takes place in a/an __________ reactor.
Autothermal
Trickle bed
Plug flow
None of these
Hydrochloric acid is also known as
Oil of vitriol
Muriatic acid
Strong organic acid
Green acid
Wax is a
Mixture of glycerides
Mixture of esters of polyhydric alcohols excepting glycerine
Liquid at room temperature
Mixture of glycerides of fatty acids