The correct sequence of various regions I absorption spectrum is
1 Visible, ultraviolet, microwave, infra red
2 Infra red, gamma rays, ultraviolet, microwave
3 Ultra violet, visible, infra red, microwave
4 None of these
Diamond is harder than graphite because of 1 Difference of layers of atoms 2 Tetrahedral structure of diamond 3 Difference of crystalline structures 4 None of these
precautions to be observed while using electrical equipment
When did india conduct three under ground nuclear tests?
Which of the following is called a strategic metal? 1 Silicon 2 Germanium 3 Titanium 4 Uranium
Bagasse, a by-product of sugar manufacturing industry, is used for the production of 1 Nylon 2 Glass 3 Paper 4 Alcohol
Which country has no sunrise?
Label the following types of erosion in order by their ability to transport materials. Wind erosion, water erosion, glacial erosion, plant/animal erosion.
the basic approach to science was established by:
Catalytic properties of a substance may be best defined as a phenomenon of 1 Absorption 2 Chemisorption 3 Adsorption 4 None of these
what is defination of conductivity? How much conductivity of water ? what is effect when conductity of water low or high?
The major ingredient of leather is 1 Carbohydrate 2 Collagen 3 Polymer 4 Nucleic acid
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction