Q. Le-Blanc process is a primitive process for the manufacture of

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Q. How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?

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Q. Cement setting under water employs a/an __________ process.

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Q. Plaster of Paris is

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Q. Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an

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Q. Conversion of SO₂ to SO₃ in Monsanto 4-pass converter is about __________ percent.

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Q. Chemical name of 'alum' is

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Q. Carborundum consists mainly of

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Q. Wax is a

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Q. Catalyst used in the hydrogenation of oil is

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Q. Viscose rayon is

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Q. Triple superphosphate is manufactured by reacting

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Q. __________ are added in lacquers to remove film brittleness and to improve adhereness.

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Q. Washing of coal is done to

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Q. Systemic insecticides

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Q. Dry ice (solidified CO₂) is used for the

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Q. In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

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Q. Chemical formula of BHC, which is an insecticide is

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Q. A bio-catalyst produced by living cells which acts independent of the cell is called a/an

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Q. Pick out the wrong statement.

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