In an atomic nucleus, neutrons and protons are held together by
1 Gravitational forces
2 Magnetic forces
3 Exchange force
4 Coulombic forces
What is one light minute?
Who propounded the signs of the zodiac?
Nuclear fission is caused by the impact of 1 Proton 2 Electron 3 Neutron 4 None of these
4 Answers Jharkhand Staff Selection Commission JSSC,
Amalgams are 1 Alloys which contain carbon 2 Alloys which have great resistance to abrasion 3 Alloys which contain mercury as one of the contents 4 None of these
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction
‘Saponification involves the hydrolysis of fats and oils by 1 Water 2 Washing soda 3 Stearic acid 4 Caustic soda
Write two characteristics of Science.
0 Answers Mahatma Gandhi University,
Who discovered radio telescope?
the basic approach to science was established by:
What is the Embrylogy ?
Explain how you can integrate Life skills in Science Teaching
0 Answers Mahatma Gandhi University,
What are quasars?