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 discovered radio telescope?
Rubber is coagulated from latex by adding 1 Hydrochloric acid 2 Acetic acid 3 Sulphuric acid 4 Carbonic acid
When was the second and third experimental explosion conducted?
Using an applied force of a Newton across one meter is known as a:
What is the colouring matter in plants called
The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence
What is one light second?
Catalytic properties of a substance may be best defined as a phenomenon of 1 Absorption 2 Chemisorption 3 Adsorption 4 None of these
Glass is made of the mixture of 1 Quartz and mica 2 Sand and salt 3 Sand and silicates 4 None of these
Which of the following metals remains in liquid form under normal conditions? 1 Uranium 2 Radium 3 Zinc 4 Mercury
The year in which magnetic observations were started in mumbai and thiruvananthapuram?
Actinides are the elements with atomic numbers from 1 36 to 43 2 89 to 103 3 97 to 114 4 101 to 115