Nylon-66 is manufactured from
Hexamethylene diamine and adipic acid
Hexamethylene diamine and Maleic anhydride
Caprolactam
Dimethyl terephthalate and ethylene glycol
Correct Answer :
A. Hexamethylene diamine and adipic acid
Related Questions
__________ is an ore of lead.
Quartz
Galena
Siderite
Chalcopyrite
Bromine is used in the preparation of
Fire extinguishing compounds
Fire proofing agents
Dyes and antiknock compounds
All (A), (B) and (C)
Frasch process is for
Making oxygen
Producing helium
Mining sulphur
Making nitrogen
Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient of expansion & high chemical resistance.
Flint
Soda
Pyrex
Potash
In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed:
Furnace → converter → absorber
Furnace → evaporator → absorber
Furnace → converter → evaporator
Converter → furnace → absorber
Catalyst used in the hydrogenation of oil is
Nickel
Platinum
Iron
Alumina
A substance produced by a living organism and capable of anti-microbial activity is called a/an
Antibiotic
Antiseptic
Disinfectant
None of these
__________ is produced by the dehydrogenation of ethyl benzene.
Styrene
Ethyl alcohol
Cumene
Phenol
Blue vitriol is chemically
Copper sulphate
Ferrous sulphate
Copper nitrate
Aluminium sulphate
__________ is a thermosetting plastic.
Polyvinyl chloride
Polythene
Bakelite
Teflon
Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.
15-30
90-100
250-300
< 0
Sodium bisulphite is used for __________ water.
Deaeration
Dechlorination
Both (A) & (B)
Neither (A) nor (B)
Sea weeds are an important source of
Fluorine
Chlorine
Bromine
Iodine
The most reactive allotropic form of phosphorus is __________ phosphorus.
Red
Yellow
Violet
Black
The end bleaching agent used to move last traces of colour bodies from the pulp is
Chlorine dioxide (ClO2)
MgO
SO2 gas
Mercaptans
Pig iron is produced by blast furnaces in India using mostly the iron ore named
Hematite
Magnetite
Siderite
Chalcopyrite
Analgesic drugs are
Pain relievers
Antibiotics
Used in the treatment of T.B.
Used in the treatment of typhoid
Conversion of CO to CO2 by steam in presence of a catalyst is called
Steam reforming
Shift conversion
Steam gasification
None of these
Which of the following is not present in bagasse fibre?
Cellulose
Lignin
Pentogens
None of these
Wet chlorine gas produced during electrolysis of brine is dehydrated by
Spraying 66° Be H2SO4 counter current to the flow of the gas
Passing it through a bed of diatomaceous earth
Passing it through a bed of silica gel
None of these
Zeolite is a/an
Naturally occuring clay which is capable of exchanging cations
Abrasive material
Catalyst used in shift conversion
None of these
Sand and __________ is fused at 1300°C, to produce sodium silicate.
Limestone
Soda ash
Coke
Sodium sulphate
The process involved in converting rubber into a thin sheet or coating it on fabric is called
Extrusion
Mastication
Calendaring
Vulcanisation
Function of thinner in a paint is to
Accelerate the oxidation of oil
Prevent gelling of the paint
Suspend pigments & dissolve film forming materials
Form a protective film
Which of the following is a constituent of vinegar?
Around 10% alcohol
Around 1% acetic acid
Both (A) and (B)
Neither (A) nor (B)
Hydrocyanic acid (HCN) is used as an insecticide for
Controlling timber degradation by ants
Controlling poultry lice
Potato beetle
Citrus fruits
Flux addition during smelting of ore is done to
Remove impurities/gangue
Enhance rate of reaction
Accelerate reduction of ore
Separate slag from metal
Fourdrinier machine is used in the manufacture of
Sugar
Paper
Alcohol from molasses
Phenol formaldehyde
Chemical name of soda ash is
Sodium bicarbonate
Sodium thiosulphate
Potassium carbonate
None of these
Chemical name of 'alum' is
Barium sulphate
Aluminium sulphate
Aluminium chloride
Calcium sulphate