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G.K Question and Answer - Chemistry MCQs Set III

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1. The catalyst used in the lead chamber process is:




2. The catalyst employed in the production of H2S04 by the Contact process is:




3.  The employed catalyst in the production of ammonia through the Haber's process is:




4.  In the contest of an alternative sources of energy and practical bio-fuel ethanol can be obtained from-which of the following?




5. When the water vapour is poured on the red heated coke then the mixture of carbon monoxide and hydrogen gas is obtained which is:




6.  The gaseous mixture of carbon monoxide and nitrogen is called:




7. The main component of the natural gas is:




8. In L.P.G. the main component is:




9. Which of the following has the maximum calorific value?




10. Which of the following would produce minimum environmental pollution?




11. The percentage amount of carbon in the various types of coal is different, in which of the following its percentage would be the most:




12. Which of the following is called as the brown coal?




13. The anti-knocking properties of any fuel exhibit:




14. On what basis, the Mendeleev periodic table is classified?




15.  Who propounded the modern periodic law?




16. The basis of the classification of the element in the modern periodic table is:




17.  Which of the following is the heaviest metal?




18. Which of the following is the lightest metal?  




19. Which of the following is the lightest element?  




20. Which of the following is the most fundamental property of the element?




21. The process employed to remove the magnetic impurities from the Ores is called:




22. The concentration process of sulphide ores is:




23. The main ore of the mercury is:




24. The element radium was extracted from:




25. Aluminium metal is extracted mainly from its ore:




26. Galena is the ore of the metal:




27. Monozite is the ore of:




28. The chemical formula of washing soda is :




29. In the ocean-water which of the following salt has its maximum contribution in the salinity:




30.  The chemical utilized and employed as fixer in the photography is:




31. The extremely soft mineral, talk (soap stone) is mainly:




32.  In the earth crust although the amount of aluminium is more than iron, however aluminium is costly than iron because:




33. For the installation of aluminium plants in India, the minimum required parameter other than bauxite is:




34.  Which of the following statement is true regarding the aluminium?




35. The chemical formula of the plaster of Paris is:




36. Which of the following is the chemical name of the lime stone?




37.  From which of the following ore, iron is extracted?




38.  What will be the change when iron get rusted?




39. Which of the following element is mixed up for making steel which can resist high temperature and which has high level hardness and anti-frictional resistivity?




40.  To provide stern hardness which of the following is mixed up?




41. Blue Vitriol is:




42.  The coating of thin layer of the zinc on the steel or iron utensils is called:




43. The sharp (bitter) smell of the substance which is found in the colouration or painting is:




44. Which of the following metal is the best conductor of the electricity?




45. The substance which is useful for the photography:




46. Which of the following metal is the heaviest?




47. Which of the following metal is liquid at ordinary temperature?




48. The substance employed and frequently used in the fluorescent tube is:




49. Which of the following metal is used in the accumulator cell?