Raw materials used for producing __________ cement does not contain iron oxide.
Waterproof
Slag
White
Pozzolan
Correct Answer :
C. White
Related Questions
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
Starting raw material for the manufacture of Maleic anhydride is
n-butene
Benzene
Either (A) or (B)
Neither (A) nor (B)
The temperature in the calcium carbide furnace is __________ °C.
200-300
700-850
2000-2200
4000-4500
Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on
Slaked lime
Soda lime
Calcium perchlorate
None of these
Average sulphur content in Indian pyrites is about __________ percent.
15
35
55
70
Phenolic antiseptics are added in the __________ soap.
Shaving
Medicated
Metallic
Transparent
Calcination of limestone is not done in a __________ kiln for producing lime.
Vertical shaft
Rotary
Fluidised bed
Fixed bed
Gun powder, which is an explosive comprises of charcoal, sulphur and
Glycerine
Salt petre
Nitro glycerine
Dynamite
__________ is a thermosetting plastic.
Polythene
Epoxy polymer
P.V.C.
Polystyrene
Carbon disulphide is mainly used in the production of
Viscose rayon
Corundum
Plasticiser for unsaturated polyester
Paints
Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient of expansion & high chemical resistance.
Flint
Soda
Pyrex
Potash
Lindane is
Not a fumigant
BHC (Benzene Hexachloride) containing 99% γ-isomer
A by-product of BHC manufacture
Both (B) and (C)
The manufacture of Kraft pulp is done by a/an __________ process.
Alkaline
Acidic
Neutral
None of these
90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.
< 0
10-30
250-280
500-600
Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.
Chromium
Arsenic
Copper
Manganese
Plaster of Paris is
CaSO4. ½H2O
Used for setting of broken bones
Both (A) and (B)
Same as gypsum
DDT stands for
Diethyl-diphenyl-trichloromethane
Dichloro-diphenyl-trichloromethane
diphenyl-dichloro-trichloromethane
Dichloro-diphenyl-trichloroethane
Mercury cells for caustic soda manufacture, compared to diaphragm cells
Require lower initial investment
Require more power
Produce lower concentration NaOH
None of these
Sudden temperature fluctuation does not affect pyrex glass, because of its
Low co-efficient of expansion
High co-efficient of expansion
High melting point
Both (B) and (C)
Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.
80
90
98
100
Terylene is
Same as Dacron
A polyester
Both (A) & (B)
Neither (A) nor (B)
The main product of high temperature carbonisation of coal is
Coke
Ammonia
Tar
Phenol
High acid value of an oil or fat is an indication of
Storage under improper conditions
Absence of unsaturation
Its smaller molecular weight
None of these
__________ paper is used in the manufacture of newsprint paper.
Ground-wood
Board
Tissue
Wrapping
Raw materials for 'Solvay Process' for manufacture of the soda ash are
Salt, limestone and coke or gas
Ammonia, salt and limestone
Ammonia limestone and coke
None of these
Paper pulp produced by Kraft/sulphate process is
Bleached easily
Dull white in color
Strong fibrous
Dark colored
Fusel oil is a/an
Essential oil
Extract from medicinal herbs
Mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses).
None of these
Which of the following contains least amount of N2?
Coke oven gas
Blast furnace gas
Producer gas
Water gas (blue gas)
Zeolite is a/an
Naturally occuring clay which is capable of exchanging cations
Abrasive material
Catalyst used in shift conversion
None of these