Common salt is generally not produced commonly by __________ method from brine.
Massacuits is a terminology used in the __________ industry.
Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.
Mercury electrolytic cell produces 50-NaOH solution. Its operating temperature is __________ °C.
Chemical name of soda ash is
Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material ?
Essential oils are usually obtained using
Exothermic condensation reaction of monochlorobenzene with chloral in presence ofoleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.
Low purity oxygen is used for
Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is
High temperature carbonisation of coal takes place at __________ °C.
Sodium carbonate (soda ash) is not used in the manufacture of
Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?
Hydrodenation of vegetable oils is a/an __________ reaction.
Starting raw material for the manufacture of maleic anhydride is
Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
Aryl benzene sulphonate (ABS) is a
Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it
Carbon tetrachloride (CCl4) is the starting raw material for the manufacture of
Carbon disulphide is mainly used in the production of
Commercial production of Vanaspati is done by __________ of edible vegetable oils.
The basic constituent of vegetable oils is
Which is a high grade pulp ?
Titanium dioxide is a/an __________ colour pigment.
Vanillin is a type of
Glass is
Impurities present in brine is normally removed by treatment with
Cement mainly contains
__________ is produced using molasses as the starting raw material.
Poly tetraflouro ethylene (P.T.F.E.) is known as
White phosphorous is stored under water, because
Viscose rayon
Zeolite is a/an
Permanent hardness of water is due to the presence of calcium & magnesium
Pick out the wrong statement.
Dacron (or terylene) fibres as compared to nylon'fibres have
Adipic acid is an intermediate in the manufacture of
__________ are used as corrosion inhibitor for iron & steel in aqueous solutions.
Salt is added in the kettle during soap manufacture to separate
99.purity oxygen is used in
Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene ?
Baking soda is chemically represented by
Fourdrinier machine is used in the manufacture of
Celluloid is chemically
The most economical pulp for the production of newsprint would be the __________ pulp.
Stereospecific agents are exemplified by
Mercury cells for caustic soda manufacture, compared to diaphragm cells
Temporary hardness of water can be removed by
Analgesic drugs are
Hydrogenation of oil/fat does not
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