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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. Cholesterol is an example of which of the following?
Q2. The content of hair and nail is........
Q3. ......... Is the important constituent of cell wall.
Q4. Chlorofluorocarbons, known as Ozone - depleting substances are used in .... (1) in the production of plastic foams (2) in the production of tubeless tyres (3) in cleaning certain electronic components (4)as pressurizing agents in aerosol cans. Pick the correct answer
Q5. Nucleic acids have ……………….. .
Q6. Nucleic acid is made up of ……………….
Q7. Which of the following sugar unit is present in nucleic acid?
Q8. .......protein contains nucleic acid as prosthetic group.
Q9. Glucose is a .....
Q10. Nucleic acids are polymers of which of the following?
Q11. DNA is found …………………
Q12. ……………….bases is found only in RNA and not in DNA.
Q13. All enzymes are .........
Q14. The structure of DNA molecule is ....
Q15. ……………….is called aldohexose.
Q16. ........is considered as disaccharide.
Q17. Raffinose is an example for which of the following?
Q18. ………………rotates the plane polarised light in clockwise direction.
Q19. Oxidation of gluconic acid to glutaric acid proves the presence of ....
Q20. ………………….is called fruit sugar.
Q21. Fructose is otherwise called ..........
Q22. …………………is the IUPAC name of fructose.
Q23. What colour starch solution will give with iodine?
Q24. ..........are the building blocks of proteins.
Q25. How do we call the process of precipitation of protein?
Q26. …………………is considered as conjugated proteins.
Q27. ……………………is the prosthetic group present in glycoproteins.
Q28. The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs……
Q29. ……………….is an exaple of phosphoproteins.
Q30. ………………….is the prosthetic group present in chromoproteins.
Q31. ………………….is the prosthetic group present in lipoproteins.
Q32. The nucleic acid present in cytoplasm of the cell is......
Q33. .........is present only in RNA.
Q34. ……………….is present only in DNA.
Q35. ..........are not biomolecules.
Q36. ……………….does not belong to the Carbolhydrates.
Q37. Sucrose and .........are disaccharides.
Q38. ..........is the simplest amino acid.
Q39. In the context of global oil prices, "Brent crude oil" is frequently referred to in the news. What does this term imply? (1) It is a major classification of crude oil. It is sources from North sea. (3) It does not contain sulphur. Which of the statemen/s given above is/are correct?
Q40. Haemoglobin and cytochromes are examples of ....
Q41. Function of DNA is ....
Q42. Diazonium salts give coupling reactions with which of the following?
Q43. 1% solution of phenol is a .......
Q44. ........is a Chromophore.
Q45. Cotton dyeing is done with ........dye.
Q46. Hydrazine is.......
Q47. Non-stick cooking utensils are made with......
Q48. ………………..does not have the property of remedy for any disease.
Q49. ………………..drugs produce loss of sensation.
Q50. ………………..is used as a local anaesthetic.