LGS Exam Questions And Answers|| LGS exam Expected Questions And Answers
1.Which was the first subatomic particle discovered?
Answer :- Electron
2. Which theory is used for explaining the changes in reaction rate?
Answer :- Collision theory
3. Feron gas is used in?
Answer :- Refrigerators
4. Heat produced on account of friction is transferred by?
Answer :- Conduction
5. The number of molecules contained in 1 mole of gases is called?
Answer :- Avogadro number
6. Water gas is a mixture of?
Answer :- Carbon monoxide and Hydrogen
7. What is Red Led?
Answer :- Triplumbic tetroxide
8. Balmer's series in emission spectrum of hydrogen atom lie in the?
Answer :- Visible region
9. The central most spare of tooth contains?
Answer :- Pulp
10. The organ that regulates the body temperature in human being?
Answer :- Skin
11. The principal metal used in manufacturing steel is?
Answer :- Iron
12. Optical fibre works on the?
Answer :- total internal reflection
13. Chemically heavy water is?
Answer :- Deuterium oxide
14. Reo viruses are ?
Answer :- Double standard RNA viruses
15. Chemically respiration is?
Answer :- Oxidation reaction
16. National Science Day is observed on February 28 to commemorate?
Answer :- Raman's effect Day
17. Name the world's first dedicated education stellite launched by India?
Answer :- Edusat
18. The number of vertebra in the vertebral column of man is?
Answer :- 33
19. Bunchy top disease is caused by?
Answer :- Virus
20. Monocarpic plant which shows flowering once in 12 years?
Answer :- Bamboo
