WEBSITE AND DATABASE FOR SALE

Unfortunately, Mr. M. Subramanian, who maintained this website lost his battle to cancer and passed away in July, 2019. The database has over 50,000 questions. If you are interested in purchasing the website/database, please reach out using the form here.
Khub.info Learn TNPSC exam and online pratice
Q1. What is the fundamental property of an element?
Q2. Of the following rare gases, which one is not present in the atmosphere?
Q3. How many periods are there in the long form of periodic table?
Q4. The number of protons in the nucleus is expressed by .......
Q5. Of the following, which one is an example of a liquid conductor?
Q6. Of the following which one is a bad conductor of electricity?
Q7. Of the following which one is a good conductor of electricity?
Q8. Of the following which one is an insulator?
Q9. Ammonium Salts gives a brown precipitate with which of the following reagents?
Q10. To detect the presence of which of the following, Brown Ring Test is used?
Q11. What is the percentage of free nitrogen present in the atmospheric air?
Q12. Nitrogen is the major constituent in which of the following?
Q13. Nitrous oxide mixed with 10% oxygen is commonly used as a/an……….
Q14. Liquid Nitrogen is used in the field of ....
Q15. 78% of atmospheric air contains……..
Q16. Of the following elements which one is the major constituent of proteins?
Q17. Petrol is ………………..
Q18. The burning of phosphorous is an example of what type of combustion?
Q19. What is the term for the lowest temperature at which a material catches fire?
Q20. Carbon dioxide is a .....
Q21. Of the following fuels, which one has the highest calorific value?
Q22. Of the following which one is a combustible material?
Q23. Of the following, which one is not a combustible material?
Q24. What is/are the condition/s required for combustion?
Q25. What is the carbon containing product formed in photosynthesis?
Q26. In the combined state, Carbon occurs as.......
Q27. Silicon Carbide is also known as.........
Q28. Of the following which one is used in gas masks?
Q29. Of the following which one is known as "Black lead"?
Q30. What is the major component of Gober/Bio gas?
Q31. Hydrogen-oxygen fuel cell is commonly used in which of the following?
Q32. In a battery .......energy changes to .......energy.
Q33. Photosynthesis is an example of .......reaction
Q34. Of the following elecments which one shows variable valency?
Q35. The compounds with the same molecular formula but possessing different structural formulae are known as .....
Q36. Which of the following is used for electroplating bicycle parts?
Q37. Of the following which one is a life supporting gas?
Q38. The gas obtained during the electrolysis of molten sodium chloride is….
Q39. The combustion reaction if an example of......
Q40. Oxygen is prepared in the laboratory by heating which of the following?
Q41. Hydrogen gas is .......
Q42. What is the term for the process of adding hydrogen to a compound?
Q43. What are the yields from the reaction of Zinc and dilute sulphuric acid?
Q44. Of the following which one occurs in the Sun and other Stars?
Q45. Which of the following inert gas is used in airships?
Q46. The radioactive inert gas is........
Q47. Which of the following is essential for respiration and combustion?
Q48. Of the following which one is ideal to be used as a cooling medium?
Q49. Which of the following when used as fuel does not cause air pollution?
Q50. If the petrol is free from ......, it will minimize air pollution
Answers Evaluate

 

 

© 2024 - All Rights with khub.info