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Chemistry - d and f Block Elements

Practise 50 AIIMS previous year questions on d and f Block Elements, compiled from papers spanning 2001 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AIIMS tests.

d and f Block Elements has been asked in 18 of the 19 years of AIIMS papers analysed (2001–2019), with 50 questions in all. 58% of them were easy, 34% moderate and 8% tough. Most of its questions came from 2013, with 8 questions that year. In the last three years (2017–2019) it had 12 questions across 5 papers, about 2.4 per paper.

The chapter's 3 topics are not weighted equally: Properties of D-block elements (22 questions, 44%), Compounds of Transition Metals (17 questions, 34%), and F-Block elements (11 questions, 22%) have been asked the most. Compounds of Transition Metals has produced the most tough questions (3).

  1. 1Which of the following transition elements have melting point below ?26 May, 2019Properties of D-block elements
  2. 2Which of the following can react with ?26 May, 2019Compounds of Transition Metals
  3. 3is26 May, 2019Properties of D-block elements
  4. 4The basic character of the transition metal monoxide follows the order25 May, 2019Properties of D-block elements
  5. 5Assertion : is more stable as compare to . Reason : The electronic configuration of Gd is [ .25 May, 2019F-Block elements
  6. 6In which of the following elements number of -electrons is zero in -orbital?27 May, 2018Properties of D-block elements
  7. 7In acidic medium, which of the following becomes colourless?27 May, 2018Compounds of Transition Metals
  8. 8Which of the following exhibits minimum number of oxidation states?27 May, 2018F-Block elements
  9. 9Least number of oxidation states is shown by27 May, 2018F-Block elements
  10. 10on reaction with does not give26 May, 2018Compounds of Transition Metals
  11. 11Which is least stable in aqueous medium?26 May, 2018Properties of D-block elements
  12. 12The colourless species is2017Properties of D-block elements
  13. 13Best reagent for the conversion of to is2016Properties of D-block elements
  14. 14Copper sulphate is dissolved in water containing for making Bordeaux mixture.2015Compounds of Transition Metals
  15. 15Assertion: is used as primary standard in volumetric analysis. Reason : It has a good solubility in water.2015Compounds of Transition Metals
  16. 16Assertion: Change in colour of acidic solution of potassium dichromate by breath is used to test drunken drivers. Reason : Change in colour 2015Compounds of Transition Metals
  17. 17in alkaline medium changes to2014Compounds of Transition Metals
  18. 18In presence of acidic medium, converts into2014Compounds of Transition Metals
  19. 19Assertion: Chemistry of actinoids is more complicated than lanthanoids. Reason: Actinoid elements are radioactive.2014F-Block elements
  20. 20Which of the following element has lowest melting point?2013Properties of D-block elements
  21. 21Maximum number of unpaired electrons are present in2013F-Block elements
  22. 22When calomel is treated with ammonium hydroxide, a black substance is formed. The black substance is2013Compounds of Transition Metals
  23. 23Oxidation state of iron in haemoglobin is2013Properties of D-block elements
  24. 24Which of the following is most basic?2013Properties of D-block elements
  25. 25Which of the following metal ion forms unstable complex with ?2013Properties of D-block elements
  26. 26in acidic medium converts into2013Compounds of Transition Metals
  27. 27Assertion : is stronger reducing agent than . Reason : of is negative.2013Properties of D-block elements
  28. 28in an acidic medium dissociates into2012Compounds of Transition Metals
  29. 29Magnetic moment of is nearest to2012Properties of D-block elements
  30. 30Assertion : is used as an oxidising agent in volumetric analysis. Reason : has the tendency of attaining +3 oxidation state.2012F-Block elements
  31. 31Which material is used as a neutron moderator?2011F-Block elements
  32. 32Assertion : Reduction potential of Mn to +2 is more positive than Fe to +2 . Reason : Ionisation potential of Mnis more than that of .2011Properties of D-block elements
  33. 33What are constituents of 'Mischmetal'?2010F-Block elements
  34. 34In the ground state of , the number of shells occupied, subshells occupied, filled orbitals and unpaired electrons respectively are2010Properties of D-block elements
  35. 35Assertion : Zinc displaces copper from copper sulphate solution. Reason : The of zinc is and that of copper is .2010Properties of D-block elements
  36. 36Assertion : Transition metals are poor reducing agents . Reason : Transition metals form numerous alloys with other metals.2010Properties of D-block elements
  37. 37Assertion : The degree of complex formation in actinides decreases in the order . Reason : Actinides form complexes with p-bonding ligands s2010F-Block elements
  38. 38Mercurous chloride exists in the form of2009Compounds of Transition Metals
  39. 39Cyanogen gas is obtained in the reaction2007Compounds of Transition Metals
  40. 40Assertion : Magnetic moment of Dy is the highest among the lanthanoids. Reason : Orbital motion contributes magnetic moment.2007F-Block elements
  41. 41The colour imparted by Co(II) compounds to glass is2006Properties of D-block elements
  42. 42Assertion : is used as primary standard in volumetric analysis. Reason : It has a good solubility in water.2006Compounds of Transition Metals
  43. 43Assertion : Change in colour of acidic solution of potassium dichromate by breath is used to test drunk drivers. Reason : Change in colour i2006Compounds of Transition Metals
  44. 44Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other, in2005Properties of D-block elements
  45. 45The compound insoluble in water is2004Properties of D-block elements
  46. 46mole) in neutral aqueous medium is disproportionated to2003Compounds of Transition Metals
  47. 47Lanthanide for which + II and +III oxidation states are common is2003F-Block elements
  48. 48Assertion : Solution of in water is coloured. Reason: Oxidation state of in is +6 .2003Compounds of Transition Metals
  49. 49Assertion : Cuprous ion is colourless whereas cupric ion is blue in the aqueous solution. Reason : Cuprous ion ) has unpaired electrons whil2002Properties of D-block elements
  50. 50Which of the following is the correct sequence of atomic weights of the given elements?2001Properties of D-block elements

Frequently Asked Questions

1.How many questions are available for d and f Block Elements?

This chapter includes 50 questions compiled from AIIMS papers spanning 2001 to 2019.

2.Are these questions only from AIIMS, or from other exams too?

These are AIIMS questions specifically for the d and f Block Elements chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

3.Is d and f Block Elements an important chapter for AIIMS Chemistry?

d and f Block Elements has appeared in 18 of the 19 years of AIIMS papers covered here, with 50 questions across 20 papers - about 3 per paper it appears in.

4.What is the difficulty level of d and f Block Elements questions in AIIMS?

Of the 50 questions analysed for this chapter, 58% are easy, 34% moderate and 8% tough. 2013 had the most, with 8 questions.

5.Which topics in d and f Block Elements should I focus on?

These topics have carried the most weightage in d and f Block Elements:

  • Properties of D-block elements - 22 questions (44%)
  • Compounds of Transition Metals - 17 questions (34%)
  • F-Block elements - 11 questions (22%)
  • Compounds of Transition Metals has produced the most tough questions (3).
6.Is d and f Block Elements's weightage in AIIMS going up or down?

Across all 20 papers analysed, d and f Block Elements has averaged about 2.5 questions per paper. In the last three years (2017–2019), that average has stayed about the same, at about 2.4 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.