__________ is produced by the dehydrogenation of ethyl benzene.
In industrial nomenclature, alcohol means
Which of the following is not a food additive?
Glauber's salt is chemically represented by
A substance produced by a living organism and capable of anti-microbial activity is called a/an
Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.
Chemical formula of oleum is
A cane sugar factory having sugar production rate oftons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).
Polythene is a/an __________ polymerisation product.
A 'unit process' is exemplified by the
Major component of flint glass is
Pick out the wrong statement pertaining to nitric acid.
Main constituents of portland cement are calcium aluminate and
Soaps remove dirt by
Grignard reagent is chemically known as
Nitrogen is an essential component of
Concentration of sulphide ores is done usually by
Proximate analysis of coal determines its __________ content.
Which of the following is used as a coagulant in water treatment ?
Which of the following is the purest form of water out of the following ?
Alum is commercially produced from
Chemical name of Grignard reagent is
Deaeration of water in its treatment is necessary, as it
Zeigler process
Electrodeposition of metals i.e. electroplating is never done on
Sucrose content in cane sugar may be around __________ percent.
Catalytic oxidation-dehydrogenation of methyl alcohol produces
Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is
Gypsum is chemically
Alcohol percentage in molasses may be around
Pick out the wrong statement.
Fusion of limestone and __________ produces high alumina cement.
Pure rectified spirit contains about __________ percent alcohol.
Rotary kiln is not involved in the production of
Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement ?
The function of gypsum addition during cement making is to
Bromine content in sea water may be around __________ ppm.
Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
Dacron is a/an
His scrubbed from refinery gases by absorption using
Pick out the exothermic reaction out of the following:
__________ paper is used in the manufacture of newsprint paper.
Use of water having dissolved oxygen in boilers promotes
CaO is called
Which of the following processes is absent in glass manufacturing process ?
Hydrochloric acid is also known as
Massecuite is
Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.
'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of
Main use of hydrazine is
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