Chemical formula of 'salt cake' is
Na2SO4
CaSO4
MgSO4
BaSO4
- Percentage of glycerine present in the spent lye obtained during soap manufacture is about
- During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond…
- Oils and fats are converted to soap in a process called
- Production of one ton of cement requires about __________ tons of limestone.
- Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen…
- Fluorescent dyes are added in detergents to
- Neoprene is chemically known as
- Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
- The difference between saponification value and acid value is
- Fourdrinier machine is used in the manufacture of
- __________ are added in lacquers to remove film brittleness and to improve adhereness.
- Hydrolysis of sugar is called
- Bleaching of paper pulp is done with
- Dacron is a/an
- Iron ore hematite is concentrated using
- __________ acid is an unsaturated fatty acid.
- __________ is a thermosetting plastic.
- Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium…
- Basic oxide is absent in __________ glass.
- Which of the following is not an antibiotic?
- Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
- Kaolin is a/an
- Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
- Multistage catalytic converter is not used in the
- Dehydrogenation of ethyl benzene produces
- Alcohol percentage in molasses may be around
- Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at
- Lubricating greases are a mixture of
- Fat dispersed in water is exemplified by
- Lithophane is