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Chemistry MCQ Question - Transition Elements

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1. Identify the correct statement regarding CO




2. The chief ore of A? is:




3. If temperature of gallium arsenide is increased then its conductivity will




4. Boric acid cannot be used




5. Which of the following will decompose to produce litharge




6. Which element can form tripositive ion?




7. Which of the following is metasilicic acid?




8. Coordination number of the transition element in [Pt Cl NO2 (NH3)4]2- is




9. K2 (Cu(CN)4) which one is correct




10. The oxidation number of central metal atom in [Ni(CO)4] is




11. Group VIB of transition elements contains




12. The leements in which d or f orbitals are in the process of completion are




13. The location of transition elements is in between




14. The melting points and boiling points upto meddle of 3d- series




15. Pure metal




16. Compounds attracted by applied strong magnetic field are called




17. The correct electronic configuration of Cr is




18. The oxidation state of transition elements is usually




19. When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in




20. Non-stoichiometric compounds of transition elements are called




21. When a compound of transition element is dissolved in a solution of salt then it produces




22. The specie which donates electrons to central metal atom in coordination sphere is called




23. The species which donate two electron pairs in a coordination compound is called




24. Which of the following can form a chealate




25. The central atom along with ligands is called




26. The compound or complex ion which has a ring in its structure




27. In complex compounds the oxidation number is written in




28. Geometry of the complex compounds usually depends upon




29. When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be




30. In pig iron the concentration of C-atom is




31. In the production of wrought iron Mg Si and P are removed in the form of




32. With impurities like P and S the open hearth furnace is lined with.




33. The oxidation number in [MnO4]-2




34. Which is sold as fertilizer




35. Any process of chemical decay of metals due to the action of surrounding medium is called




36. When an active metal like Al comes in contact with less active element like Cu then it produces




37. Which of the following is typical transition metal?




38. The molecular formula of toluene is




39. In benzene sulphonic acid the sulphonic group is attached with benzene ring through




40. Phenanthrene is a fused polycyclic compound contains ______ benzene rings




41. Aniline is a derivative of benzene which contains




42. How many ? electrons are there in benzene to form delocalized electronic cloud




43. Nitration of chlorobenzene gives




44. When two or more different substituents are attached with a benzene ring the number 1 position in the ring is given to a high priority group. Which one of the following groups has highest - priority?




45. When benzene is substituted by halogens only which one of the following halogens only which one of the following halogens is given the number one position in the ring while writing the name of compound?




46. Which one of the following is not a meta directing group?




47. Which pair of groups contains both ortho & para directing groups




48. Michael Faraday discovered benzene in the gas which was produced by destructive distillation of vegetable oil that is done in




49. By which method the molecular mass of benzene was determined as 78.108?




50. How many moles of H2 are added up when benzene is heated with hydrogen in the presence of platinum?