Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda
High cost of mercury.
High specific gravity of mercury.
Pollution of water stream by mercury.
Non-availability of high purity mercury.
Na2CO3 is called
Plaster of Paris
Which of the following is not produced commercially from sea water
Magnesium & potassium compounds
A 'unit process' is exemplified by the
hydrogenation of oils
Dehydrogenation of isopropanol produces
Which oil is preferred for paint manufacture
Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of
Poly tetraflouro ethylene (P.T.F.E.) is known as
'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
CO2 & H2
C & H2
N2 & H2
CO & H2
Consider the production of ammonia from methene and air as rawmaterials.
The catalyst used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis
i - Fe/Al2O3; ii - Cu - ZnO/Al2O3
i - Fe/Al2O3; ii - Ni/Al2O3
i - Ni/Al2O3; ii - Cu - ZnO/Al2O3
i - Ni/Al2O3; ii - Fe/Al2O3
Dehydrogenation of ethyl benzene produces
Main use of liquid nitrogen is in
making gun powder.
Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process
Washing soda is chemically represented by
Chloral is used in the manufacture of
NONE OF THESE
Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive calleddynamite.
The raw material used for its manufacture are glycerene, nitric acid and
Naphthols are derivates of
Electrodeposition of metals
i.e. electroplating is never done on
Permanent hardness of water is due to the presence of calcium & magnesium
sulphates & chlorides
NONE OF THESE
Styrene-butadiene-rubber (SBR) as compared to natural rubber has
poorer resistance to oxidation.
greater amount of heat build-up under heavy loading.
Poorer tensile strength.
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Rates Of Chemical Reactions And Chemical Kinetics
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The Database Development Process
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Physical and Chemical Changes