The rate of chemical reaction does not depend upon
1 Concentration
2 Catalyst
3 Temperature
4 Pressure
What is practical frequency. ? How create a frequency band?
what would be the fate of life on earth 10 yrs down the lane.
first aid to person affected with electrical shock
Which of the following is the lightest gas? 1 Nitrogen 2 Hydrogen 3 Ammonia 4 Carbon dioxide
Which scientists gave detailed information about nebula?
Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper
Which of the following is called a strategic metal? 1 Silicon 2 Germanium 3 Titanium 4 Uranium
name all the density all cloth,metals,materials?
Who discovered radio telescope?
Conversion of a substance directly from solid to vapour state is known as 1 Ionization 2 Evaporation 3 Vapourisation 4 Sublimation
The two elements that are frequently used for making transistors are 1 Boron and aluminium 2 Silicon and germanium 3 Iridium and tungsten 4 Niobium and columbium
Study of life in outer space is called A) Endobiology B) Exobiology C) Entrobiology D) Neobiology