Graphite and sillimanite are
1 Refractory minerals
2 Ferrous minerals
3 Base minerals
4 None of these
the basic approach to science was established by:
Rust is 1 A mixture of Fe2O3 and Fe(OH)3 2 A mixture of FeO & Fe(OH)2 3 Fe2O3 only 4 A mixture of Fe2O3.3H2O and Feo
Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
Deep blue color is imparted to glass by the presence of 1 Iron oxide 2 Cupric oxide 3 Nickel oxide 4 Cobalt oxide
The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence
What are manufacturing capacities facilities you have?
How many astronauts travelled in the challenger?
abbrivation for ROA in oracle?
The average salinity of sea water is 1 2% 2 2.5% 3 3% 4 3.5%
precautions to be observed while using electrical equipment
Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane
Which of the following is a chemical change? 1 Magnetization of iron 2 Melting of ice 3 Burning of sulphur 4 Melting of wax