A. Hypo
B. Bleaching powder
C. Plaster of Paris
D. Aqua regia
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- A. C6H6Cl6 B. C6Cl6 C. C6H5Cl D. C6H4Cl2...
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- A. H2SO3 B. H2SO4 C. H2S2O7 D. H2SO7...
- Chemical formula of ‘salt cake’ is____________________?
- A. Na2SO4 B. CaSO4 C. MgSO4 D. BaSO4...
- CO & H2 are the constituents of___________________?
- A. Producer gas B. Water gas C. Coke oven gas D. All A., B. and C....
- Hydrazine is used in water treatment for the removal of___________________?
- A. Colloidal impurities B. Dissolved oxygen C. Turbidity D. Chlorinous taste...
- Rotary kiln is not involved in the production of___________________?
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- Neoprene is the trade name of___________________?
- A. Polyurethane B. Phenol formaldehyde C. Polychlorophrene D. Styrene-butadiene rubber...
- Bromine is used in the preparation of___________________?
- A. Fire extinguishing compounds B. Fire proofing agents C. Dyes and antiknock compounds D. All A , B. and C....
- Sodium carbonate (soda ash) is not used in the manufacture of___________________?
- A. Fire extinguishers B. Sugar C. Baking powder D. Detergents...
- Le-Blanc process is a primitive process for the manufacture of___________________?
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