Actinides are the elements with atomic numbers from
1 36 to 43
2 89 to 103
3 97 to 114
4 101 to 115
Who invented telescope?
Water gas is prepared by passing 1 Steam over white-hot coke 2 Air over red-hot coke 3 Methane over red-hot coke 4 Steam over heated sulphur
What is the life cycle ?
The high-temperature superconductors are 1 Metal alloys 2 Ceramic oxides 3 Inorganic polymers 4 Pure rare earth metals
Which isotope of Uranium is capable of sustaining chain reaction ?
When was the administration control of terls enstrusted to physcial research laboratory, ahmedabad?
Radioactive disintegration of uranium ultimately results in formation of 1 Radium 2 Thorium 3 Polonium 4 Lead
whate is the difference b/w aflatoxions&ocharatoxions
Label the following types of erosion in order by their ability to transport materials. Wind erosion, water erosion, glacial erosion, plant/animal erosion.
When was the first rocket launched from thumba?
Who commanded the challenger’s first flight?
Chemical formula for water glass is 1 Na2Sio3 2 Al2O3 3 NaA1O2 4 CaSiO3