Most widely and commonly used coagulant for the removal of suspended impurities in water is
Bleaching powder
Slaked lime
Alum
Copper sulphate
- Glauber's salt is chemically
- Finely ground calcium aluminate & silicate is a/an
- Polyvinyl chloride (PVC) is
- Which is a high grade pulp?
- Impurities present in brine is normally removed by treatment with
- Zeolite is used in the
- Which of the following is not a food additive?
- __________ process is used for the commercial production of nitric acid by the catalytic oxidation of…
- Flexible foam (for mattresses) is usually made of
- __________ are added in lacquers to remove film brittleness and to improve adhereness.
- Use of water having dissolved oxygen in boilers promotes
- In the Lurgi coal gasifier
- __________ of rubber decreases after its vulcanisation.
- Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
- How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical…
- Drinking (potable) water treatment does not involve
- The type of high refractive index glass used in optical instruments is __________ glass.
- Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst…
- The noble gas which occurs most abundantly in the atmosphere is
- Type of glass used in optical work is the __________ glass.
- Thorium is mainly used
- Laboratory glass wares which reacts with hydrofluoric acid, are made of the __________ glass.
- Catalyst used during the manufacture of 'Vanaspati Ghee' is
- Which of the following is a detergent?
- An alkali metal salt of Palmitic acid is known as
- Chemical name of Grignard reagent is
- Starting material for the commercial production of ethyl alcohol in India is
- Which of the following is used as a binding material in soap to improve soap texture?
- Catalytic oxidation-dehydrogenation of methyl alcohol produces
- Setting of plaster of Paris is accompanied with