Which of the following is used as a filler in rubber tyres?
1 Graphite
2 Coal
3 Coke
4 Corbon black
how is rrb model question paper for science junior engineer gr.II
What would happen had there been no chlorophyll in the green leaves?
Who is the second female cosmonaut?
Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper
Why Colours is Important in Our Daily Life???
why is ohms law not followed in long transmisson lines
When was the second and third experimental explosion conducted?
what is defination of conductivity? How much conductivity of water ? what is effect when conductity of water low or high?
Which of the following is used in making smoke bombs? 1 Sulphur 2 phosphorus 3 Hydrogen 4 Carbon
Combustion is the process in which 1 Heat is produced 2 Light is produced 3 Heat and light are produced 4 None of these
why is it important that sex cells have half the number of Chromosomes as body cells?
Water is a good solvent of ionic salts because 1 It has no colour 2 It has a high boiling point 3 It has a high dipole moment 4 It has a high specific heat