Graphite and sillimanite are
1 Refractory minerals
2 Ferrous minerals
3 Base minerals
4 None of these
Potassium nitrate is used in 1 Salt 2 Glass 3 Fertilizer 4 Medicine
Heavy water is 1 Sea water (H2O+Salt) 2 D2O 3 H2O2 4 None of these
According to Dalton’s atomic theory, the smallest particle which can exist independently is 1 An atom 2 A molecule 3 A cation 4 An anion
Long distance photography is facilitated by 1 Visible light 2 X-rays 3 Infrared rays 4 Ultraviolet rays
Epoxy resins are used as 1 Moth repellants 2 Insecticides 3 Detergents 4 Adhesives
The Contact Process is involved in the manufacture of 1 Nitric acid 2 Sulphuric acid 3 Ammonia 4 Caustic soda
Who is the chairman od atomic energy commission of india?
cause for earth-to-neutral voltage
Brass gets discolored in air because of the presence of which of the following gases in air? 1 Carbon dioxide 2 Oxygen 3 Hydrogen sulphide 4 Nitrogen
The element found on the surface of the moon is 1 Tin 2 Tungsten 3 Tantalum 4 Titanium
Who invented telescope?
Which of the following is the most stable element? 1 Uranium 2 Hydrogen 3 Oxygen 4 Lead