Neon gas is
Flammable in nature
Used in color discharge tube
Filled in lamps having tungsten filament
All (A), (B) and (C)
Correct Answer :
B. Used in color discharge tube
Related Questions
The manufacture of Kraft pulp is done by a/an __________ process.
Alkaline
Acidic
Neutral
None of these
The purpose of adding Na2CO3 to water of low alkalinity is to
Permit the use of alum as a coagulant
Increase the softening capacity of zeolite
Facilitate easy regeneration of zeolite
All (A), (B) and (C)
Starting material for the production of styrene butadiene rubber (SBR) is
Ethyl alcohol
Ethylene
Both (A) & (B)
Neither (A) nor (B)
Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and
Sulphuric acid
Phosphoric acid
Hydrochloric acid
Hydrofluoric acid
Thermoplastic materials
Do not soften on application of heat
Are heavily branched molecules
Are solvent insoluble
None of these
Polyvinyl chloride (PVC) is
A thermosetting material
A condensation polymerisation product
Made by employing emulsion polymerisation
None of these
Portland cement consists mainly of
CaO & SiO2
SiO2 & Al2O3
CaO & Al2O3
CaO & Fe2O3
Commercial production of calcium carbide requires limestone and __________ as raw materials.
Coke
Sand
Soda ash
Fuel oil
The most reactive allotropic form of phosphorus is __________ phosphorus.
Red
Yellow
Violet
Black
Glycerine can be obtained from
Fat
Naphthalene
Cumene
Sucrose
The major constituents of glass are
Lime, clay and soda ash
Sand, lime and soda ash
Silica, alumina and clay
Silica, alumina and soda ash
All enzymes are made of
Fats
Carbohydrates
Proteins
Amino acids
Phosphoric acid is prepared from
Cryolite
Chalcopyrite
Rock phosphate
None of these
Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.
Cutting
Fibrillation
Hydration
Strengthening
Chalcopyrite is the main ore of
Copper
Lead
Tin
Iron
Thermosetting plastic materials
Can be repeatedly melted
Is useful for melt casting
Cannot be melted after forming
Is useful for spinning
Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction
Decreases with decrease of thickness of the flakes
Increases with the increasing flake size keeping the flake thickness constant
Increases considerably with the rise of temperature
Decreases as the moisture content of flakes increases
__________ iron is the purest form of iron.
Cast
Wrought
Pig
High silicon
Pasteurisation of milk means
Removal of fatty and albuminous substance from it
Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics
Inhibiting the growth of micro-organisms without killing them
None of these
Main use of hydrazine is
As a rocket fuel
In water treatment
As a disinfectant
As fire retardant
Low temperature carbonisation of coal takes place at __________ °C.
300
1100
700
900
The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is
Dilute H2SO4
Oleum
Ultraviolet light
None of these
Which of the following is not a raw material used for the manufacture of ordinary glass?
Iron oxide
Soda ash
Limestone
Silica
An alkali metal salt of Palmitic acid is known as
Soap
Metallic soap
Detergent
Alkaloid
Bitterns is a/an
Unsaturated fat
Starting material for the production of iodine
By-product of chlor-alkali industry
None of these
Maleic anhydride is produced by catalytic oxidation of
Toluene
Ethyl alcohol
Naphthalene
Benzene
Varnish does not contain
Thinner
Pigment
Both (A) & (B)
Neither (A) nor (B)
Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.
-5 to 0
5 to 10
30 to 50
75 to 80
Which is the most efficient absorbent for SO3 out of the following?
20% oleum
65% oleum
78% H2SO4
98% H2SO4
Which of the following fuel gases contains maximum amount of carbon monoxide?
Coke oven gas
Water gas
Blast furnace gas
L.D. converter gas