Sodium chloride content in sea water is about __________ gms/litre.
2
10
25
50
- Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
- In primitive days, __________ was being manufactured by Leblanc Process.
- Mannheim furnace is used in the manufacture of
- Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.
- Vanillin is a type of
- Glass is
- Which of the following is not produced on commercial scale from sea water?
- The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
- Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury…
- Which of the following is a detergent?
- Process conditions in fermentator used for production of penicillin is
- The most widely used coagulant for removing suspended impurities from water is
- Black liquor is converted into white liquor by
- Metallic soap is __________ salt of fatty acids.
- __________ glass is used for the manufacture of optical glass.
- Most commonly used rubber vulcanising agent is
- Main constituents of natural rubber is
- Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene).…
- Which of the following is the main constituent of the mother liquor produced in salt industry?
- Mercury cells for caustic soda manufacture, compared to diaphragm cells
- Titanium dioxide is a/an __________ colour pigment.
- Hydrazine is used in water treatment for the removal of
- Production of one ton of cement requires about __________ tons of limestone.
- Esterification reaction produces
- Multistage catalytic converter is not used in the
- Low temperature carbonisation of coal takes place at __________ °C.
- Finely ground calcium aluminate & silicate is a/an
- __________ paper is used in the manufacture of newsprint paper.
- High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
- Sea water contains about __________ ppm of bromine.