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Q1. What gas is used to produce coloured glow in electric signs?
Q2. What is the rare gas obtained from radioactive disintegration?
Q3. Covalent bonds are .....
Q4. What is the content of Electrovalent compound?
Q5. The non reactivity of rare gases is because of ....
Q6. ........ law can be used to separate the isotopes of the same element.
Q7. How do we call the tendency of gaseous substance to distribute itself uniformly in the available space?
Q8. According to Charle's law at constant volume .....
Q9. Zero degree Kelvin is known as .......temperature
Q10. In a group all the elements will have ......
Q11. All the elements in a group have ..... Valency.
Q12. Of the following gases, which one is not a noble gas?
Q13. Isobars are the atoms of the same element with .......
Q14. The charge of the nucleus is due to the presence of ......
Q15. The mass of an electron is……………
Q16. In lithium, the atomic number is 3 and the mass number is 7. What would be the number of protons in it?
Q17. What is the term used for the sum of the number of protons and neutrons present in the necleus?
Q18. Who was the first to use the term "green house effect"?
Q19. Of the following which are highly compressible?
Q20. Of the following, which one is a heterogeneous mixture?
Q21. Carbolic acid (eg. Phenol) is a good example of .....
Q22. Of the following vitamis, which are water soluble?
Q23. The content of Carbohydrates are…..
Q24. Discoverer of antibiotic penicillin is......
Q25. The content of Freezing mixture is…..
Q26. From among the following which one is present in all acids?
Q27. Phenolphthalein is a/an……
Q28. The content of Bordeaus Mixture is......
Q29. Of the following which one is used as a preservative in fruits and juices?
Q30. In which of the following areas Potassium Permanganate is used?
Q31. Benzene and Turpentine are ..........electrolytes
Q32. Ink is a good example of a………
Q33. By what process Vanaspati is produced from oil and fats?
Q34. What is the most abundant source of hydrogen?
Q35. Hydrogen means………
Q36. Henry Cavendish named which of the following as "inflammable gas"?
Q37. Lime water turning milky indicates the presence of.......
Q38. The reation that take place during electrolysis at the cathode is........
Q39. insulators are …………conductors.
Q40. What type of reaction take place at anode during electrolysis?
Q41. Of the following which one is an electrolytic conductor?
Q42. In electrolytic conductors the conduction is because of the movement of......
Q43. Metallic conductors are also known as……………..conductor
Q44. In metallic conductors, the conducting is because of movement of .......
Q45. Of the following coal varieties which one is superior in quality?
Q46. Of the following coal varieties, which one is inferior in quality?
Q47. Of the following compounds, which one is considered as the power house for living organisms?
Q48. What is the voltage of a dry cell battery?
Q49. Leclanche Cell is a good example for…..
Q50. In an internal combustion engine, the chemical energy is changed to ........ energy.
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