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Q1. Which of the following acts as 'semiconductor'?
Correct answer : 1
Q2. Which of the following can be considered as a good conductor of electricity?
Correct answer : 2
Q3. In an insulator, the valence band is.......
Correct answer : 3
Q4. Band model of metallic bonding is based on which of the following?
Correct answer : 1
Q5. Of the following bonds, which one is very strong?
Correct answer : 3
Q6. Hydrogen molecule is diamagnetic in nature because it has……
Correct answer : 4
Q7. If a substance contains large number of unpaired electrons, then it's nature will be ....
Correct answer : 4
Q8. Of the following which one is not possible in a chemical bond?
Correct answer : 4
Q9. What is the shape of p-orbital?
Correct answer : 1
Q10. Molecular Orbital Theory was proposed by…….
Correct answer : 3
Q11. The energy of an electron at infinity is assumed to be ?
Correct answer : 4
Q12. The "Uncertainty Principle" was proposed by…..
Correct answer : 3
Q13. Who introduced the elliptical orbits?
Correct answer : 1
Q14. On which of the following the electron beam is allowed to fall according to J.J.Thomson experiment?
Correct answer : 2
Q15. Who suggested the planetary model of an atom?
Correct answer : 3
Q16. Who discovered the sub-atomic particle neutron?
Correct answer : 2
Q17. Which of the following was proposed by Max Planck?
Correct answer : 1
Q18. Which of the following was discovered by Mosely?
Correct answer : 4
Q19. Nucleus of an atom was discovered by......
Correct answer : 2
Q20. Who discovered the cathode rays?
Correct answer : 3
Q21. Atom was discovered by……
Correct answer : 3
Q22. What is the shape of 1s orbital?
Correct answer : 4
Q23. Who was the first person to predict the interrelation of matter and energy?
Correct answer : 2
Q24. From the following which one was discovered by Chadwick?
Correct answer : 1
Q25. What is the term for the Eigen function for an electron?
Correct answer : 3
Q26. What is the 'bond order' of Oxygen molecule?
Correct answer : 2
Q27. Who explained the dual character of electrons?
Correct answer : 3
Q28. What brings about the fermentation?
Correct answer : 2
Q29. From among the following which one is used in the manufacutre of telegraph and telephone wires?
Correct answer : 2
Q30. Ethyl alcohol is a ....
Correct answer : 1
Q31. Of the following which one is added as bleaching agent to washing powders to increase the whiteness in fabrics?
Correct answer : 2
Q32. Which of the following is used as a nail polish remover?
Correct answer : 4
Q33. The percentage of ethanol in whisky is........
Correct answer : 2
Q34. Bordeaux mixture is used as........
Correct answer : 3
Q35. What is the acid present in sugarcane juice?
Correct answer : 2
Q36. Which of these metals is commonly used as a conductor?
Correct answer : 4
Q37. The energy liberated by fuels burning is........energy
Correct answer : 3
Q38. Which of the following is manufacture by the 'sublimation' process?
Correct answer : 4
Q39. Of the following elements, which one exhibits allotropy?
Correct answer : 3
Q40. What is the element in our intake of food?
Correct answer : 2
Q41. What is the term for the reaction of oxygen with carbon?
Correct answer : 1
Q42. What is the term for the broken pieces of glasses added in the manufacture of glass?
Correct answer : 1
Q43. What is the natural source of dyes?
Correct answer : 3
Q44. Of the following methods, which one is used in the electroplating and electrorefining processes?
Correct answer : 2
Q45. A solution of gum in water is known as........
Correct answer : 2
Q46. Of the following noble gases, which one is present in natural gas?
Correct answer : 3
Q47. What is the term for the elements forming a group from atomic numbers 58 to 71?
Correct answer : 4
Q48. Which one of the following factor increases down the group?
Correct answer : 3
Q49. By how many times the proton is heavier than the mass of an electron?
Correct answer : 1
Q50. Of the following which one is the poor conductor of electricity?