Coagulant is used __________ filtration.
Before
After
During
To avoid
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- Phenolic antiseptics are added in the __________ soap.
- Phenol formaldehyde
- Gypsum is chemically
- The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
- Pasteurisation of milk means
- A mineral is termed as 'ore', if
- Temporary hardness of water can be removed by
- Analgesic drugs are
- Wax is a
- Molecular weights of polymers are in the range of
- Shrinkage volume in cement setting does not depend upon the
- The major use of butadiene is
- __________ is not a constituent of gun powder.
- Glauber's salt is chemically represented by
- A mixture of chlorine & sodium bromide acts as a/an
- Transparent soaps (e.g. Pears) are
- The amount of benzene present in pure Benzol is about __________ percent.
- The type of high refractive index glass used in optical instruments is __________ glass.
- Which is the most efficient absorbent for SO3 out of the following?
- Which allotrope of sulphur is insoluble in carbon disulphide?
- Flexible foam (for mattresses) is usually made of
- The end bleaching agent used to move last traces of colour bodies from the pulp is
- Setting of plaster of Paris is accompanied with
- Chemical name of aspirin (an analgesic drug) is
- Electric bulbs are made of __________ glass.
- The noble gas which occurs most abundantly in the atmosphere is
- Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the
- Ultimate analysis of coal determines its __________ content.
- White phosphorous is stored under water, because
- Trinitrotoluene (TNT), an explosive, is made by the nitration of