Which of the following is not an insecticide?
Alcohol is produced by the
Chloramines are used in water treatment for
Transportation ofoleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of
Nickel is not used as a catalyst in the
Sudden temperature fluctuation does not affect pyrex glass, because of its
Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.
Neoprene is chemically known as
__________ glass is used for the manufacture of optical glass.
__________ of rubber decreases after its vulcanisation.
Industrial production of chloroform requires acetone and
Mannheim furnace is used in the manufacture of
Which of the following is not required in the manufacture of soda ash by Solvay process ?
Phosphoric acid is prepared from
Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.
Shrinkage volume in cement setting does not depend upon the
Bisphenol A is produced by the condensation of acetone with
Varnish does not contain
Polymerisation product of C2F4 (carbon tetraflouride) is called P.T.F.E (poly chloro tetra flouro ethylene). It is also called
Glycerine is recovered from lye by
A mineral is termed as 'ore', if
The most stable allotropic form of phosphorous is the __________ phosphorous.
__________ iron is the purest form of iron.
__________ nature of hypo (sodium thiosulphate) makes it useful in photography.
Sugar content in sugarcane on cane basis is about __________ percent by weight.
Plasticisers are added to paints to
Pick out the wrong statement.
Boiling of water containing temporary hardness produces
Pencillin, an antibiotic drug was discovered by
Styrene (a monomer for the production of polystyrene) is commercially produced by
Which of the following sugars is the sweetest?
Saponification number of an oil or fat
Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used
Ore concentration by froth floatation utilises the __________ of ore particles.
In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
Inversion of sucrose produces
In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst
Function of thinner in a paint is to
Enamels
__________ is an ore of lead.
Resistance to fusion of the refractory under a steady rising temperature condition is called
Favourable conditions for the liquefaction of gases in general are
Starting material for the commercial production of ethyl alcohol in India is
Hydrogenation of oil takes place in a/an __________ reactor.
The purpose of tanning in leather industry is to
Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda ?
The main use of activated carbon in water treatment is to control
Presence of carbonaceous matter in the sewage
Please disable the adBlock and continue. Thank you.