Which of the following is the basis of modern periodic table?
1 Atomic mass
2 Atomic number
3 Atomic size
4 Atomic volume
Where is the biggest solar telescope in india situated?
Which of the following is used to coagulate synthetic fibers from solution? 1 Hydrochloric acid 2 Sulphuric acid 3 Nitric acid 4 None of these
When was the second and third experimental explosion conducted?
Which of the following characteristics is not-shown by hydrogen? 1 It burns in air to form water 2 It supports combustion 3 It combines with almost all the metals forming hydrides 4 None of these
What is difference between nanoscience and nanotechnology?
1 Answers GSK GlaxoSmithKline,
Which of the following is the most stable element? 1 Uranium 2 Hydrogen 3 Oxygen 4 Lead
When was the atomic energy regulatory board ( aerb ) constituted?
The wavelength of X-ray is of order of 1 1 cm 2 1m 3 1 Angstrom 4 10 micron
how is electricity converted from the potential energy of water falling from dams?
Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume
Glass is made of the mixture of 1 Quartz and mica 2 Sand and salt 3 Sand and silicates 4 None of these
The inert gas which is substituted for nitrogen in the air, used by deep sea divers for breathing, is 1 Helium 2 Argon 3 Krypton 4 Xenon