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Q1. In p-orbital the maximum number of electrons present will be…….
Q2. Energy is emitted when an electron jumps from ..... shell to ... shell.
Q3. Rutherford's atomic model does not account for……….
Q4. Orbits are …………..
Q5. When an electron is present in a stationary orbit it ……………………………. Energy
Q6. Reduction is a chemical reaction which involves……….
Q7. Oxidising agents are…………
Q8. The oxidation number of an element in the free state is……….
Q9. Neil Bohr proposed that the electrons revolve around the nucleus only in…………
Q10. Hydrogen has .... Isotopes.
Q11. The equivalent weight of a trivalent element is 9. Its atomic weight will be………
Q12. The tribasic acid Phosphoric Acid has a molecular weight of 98. What will be its equivalent weight?
Q13. Acidity of a base is the number of replacable ……………
Q14. Basicity of an acid is the number of replacable .....
Q15. In the titration of weak acid with a weak base………………
Q16. A solution containing 40g of NaOH in 1 litre of water is…………….
Q17. The equivalent weight of a base depends on its …………..
Q18. The molecular weight of sulphuric acid is 98. What will be its equivalent weight?
Q19. One mole of carbon dioxide contains ……g of Carbon
Q20. PV= Constant at Constant temperature is known as………………
Q21. The weight of 5 moles of water is…………
Q22. The atomicity of Nitrogen is…………….
Q23. An ideal gas always obeys ...
Q24. When the vapour density of oxygen is 16, what will be its molecular weight/
Q25. In an endothermic reaction, the heat is…………..
Q26. Energy has to be supplied to the reactants in which of the following reactions?
Q27. A reaction which is brought about by supplying electric current is called as……..
Q28. In an exothermic reaction, the total energy of the reactants will be .......
Q29. With which of the following steels, watch springs and razor blades are made?
Q30. Manganese Steel is generally used in the manufacture of…………..
Q31. "Ammonal" is a mixture of which of the following?
Q32. Thermite is used in the field of .....
Q33. "Thermite" is a mixture of which of the following?
Q34. With which of the following Razor blades are made?
Q35. Which one of the following is one of the properties of non-metals?
Q36. Which one of the following is one of the properties of a metal?
Q37. Generally a metal is extracted from its oxide ore by the process of .....
Q38. Ruby is an oxide of which of the following?
Q39. Magnetite is an ore of which of the following?
Q40. Aluminium is purified by which of the following process?
Q41. The alloy Spiegeleisen contains which of the following?
Q42. Among the following which one is electro positive element?
Q43. Of the following, which one is not an ore of iron?
Q44. Of the following, which one is used for making strong permanent magnets?
Q45. Of the following which one is used in the manufacture of cooking vessels and chocolate wrappers?
Q46. Aluminium Powder and Ammonium Nitrate mixture used for explosive is known as……..
Q47. Why Aluminium is widely used in electric cables?
Q48. Of the following, which one does not exhibit allotropy?
Q49. Among the following, which one is the main property of sulphuric acid?
Q50. Sulphuric acid is a ………….
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