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Chemistry - p Block Elements (Group 13 & 14)

Practise 37 AIIMS previous year questions on p Block Elements (Group 13 & 14), 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.

p Block Elements (Group 13 & 14) has been asked in 17 of the 19 years of AIIMS papers analysed (2001–2019), with 37 questions in all. 70% of them were easy, 19% moderate and 11% tough. Most of its questions came from 2009, with 5 questions that year. In the last three years (2017–2019) it had 8 questions across 5 papers, about 1.6 per paper.

The chapter's 5 topics are not weighted equally: Carbon and Its Compounds (11 questions, 30%), Silicon and Its Compounds (11 questions, 30%), and Boron and Its Compounds (10 questions, 27%) have been asked the most. Boron and Its Compounds has produced the most tough questions (2).

  1. 1In processing of steel which of the following allotropes of carbon is used?26 May, 2019Carbon and Its Compounds
  2. 2Assertion : is used to detect CO. Reason : In , the oxidation number of I is +5 .26 May, 2019Carbon and Its Compounds
  3. 3Compound ' ' on reduction with gives a hydride ' ' containing hydrogen along with other products. The compound ' ' reacts with air explosive25 May, 2019Boron and Its Compounds
  4. 4Assertion: Graphite is thermodynamically more stable than diamond. Reason : Free energy of formation of graphite is less than diamond.25 May, 2019Carbon and Its Compounds
  5. 5Assertion : forms but does not form . Reason : does not react with .26 May, 2018Boron and Its Compounds
  6. 6Assertion : reacts with and forms . Reason : Lead is stable in +4 oxidation state.26 May, 2018Tin and Lead Containing Compounds
  7. 7Among the following substituted silanes, the one which will give rise to cross-linked silicone polymer on hydrolysis is2017Silicon and Its Compounds
  8. 8Select the correct options from the following :2017Carbon and Its Compounds
  9. 9Which of the following reactions does not take place?2016Boron and Its Compounds
  10. 10Assertion : is a weak acid. Reason: Water extracts the proton of .2016Boron and Its Compounds
  11. 11Addition of group-13 elements to intrinsic semiconductors results in2015Aluminium and Its Compounds
  12. 12Which of the following is not hybridised?2014Carbon and Its Compounds
  13. 13In the bond length is , when is allowed to be treated with , it forms an adduct, the bond length of in the adduct is2013Boron and Its Compounds
  14. 14For silicon which is not correct?2012Silicon and Its Compounds
  15. 15If is doped with ,2012Silicon and Its Compounds
  16. 16Living in the atmosphere of is dangerous, because it2012Carbon and Its Compounds
  17. 17Assertion : Diamond and graphite do not have the same crystal structure. Reason : Diamond is crystalline while graphite is amorphous.2012Carbon and Its Compounds
  18. 18The wrong statement about fullerene is2011Carbon and Its Compounds
  19. 19Assertion : Conductivity of silicon increases by doping it with group-15 elements. Reason : Doping means introduction of small amount of imp2010Silicon and Its Compounds
  20. 20Which of the following shows bond in silicone?2009Silicon and Its Compounds
  21. 21Which of the following is an example of chain silicates?2009Silicon and Its Compounds
  22. 22Which of the following elements shows +4 oxidation state?2009Tin and Lead Containing Compounds
  23. 23Incorrect statement about Ge is2009Silicon and Its Compounds
  24. 24Assertion : forms but does not form . Reason : B does not react with fluorine.2009Boron and Its Compounds
  25. 25The repeating unit in silicone is2007Silicon and Its Compounds
  26. 26Among the following components of cement which is present in highest amount?2007Silicon and Its Compounds
  27. 27Assertion : \( {SnI}_4\) is an orange solid. Reason : The colour arises due to charge transfer.2007Tin and Lead Containing Compounds
  28. 28Borax is used as a cleansing agent because on dissolving in water it gives2006Boron and Its Compounds
  29. 29The incorrect statement among the following is2006Carbon and Its Compounds
  30. 30Assertion : Silicones are hydrophobic in nature. Reason : linkages are moisture sensitive.2006Silicon and Its Compounds
  31. 31In diborane, the two angles are nearly2005Boron and Its Compounds
  32. 32Assertion : is known but is not. Reason : Size of fluorine is small and its lone pair of electrons interacts with -orbitals of strongly.2005Silicon and Its Compounds
  33. 33The liquefied metal expanding on solidification is2004Boron and Its Compounds
  34. 34Assertion : Stannous chloride gives grey precipitate with mercuric chloride, but stannic chloride does not do so. Reason : Stannous chloride2002Tin and Lead Containing Compounds
  35. 35Assertion : Diamond is a bad conductor. Reason : Graphite is a good conductor.2002Carbon and Its Compounds
  36. 36Hardest compound of boron is2001Boron and Its Compounds
  37. 37Which of the following is stable (inert) to fire?2001Carbon and Its Compounds

Frequently Asked Questions

1.How many questions are available for p Block Elements (Group 13 & 14)?

This chapter includes 37 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 p Block Elements (Group 13 & 14) chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

3.Is p Block Elements (Group 13 & 14) an important chapter for AIIMS Chemistry?

p Block Elements (Group 13 & 14) has appeared in 17 of the 19 years of AIIMS papers covered here, with 37 questions across 18 papers - about 2 per paper it appears in.

4.What is the difficulty level of p Block Elements (Group 13 & 14) questions in AIIMS?

Of the 37 questions analysed for this chapter, 70% are easy, 19% moderate and 11% tough. 2009 had the most, with 5 questions.

5.Which topics in p Block Elements (Group 13 & 14) should I focus on?

These topics have carried the most weightage in p Block Elements (Group 13 & 14):

  • Carbon and Its Compounds - 11 questions (30%)
  • Silicon and Its Compounds - 11 questions (30%)
  • Boron and Its Compounds - 10 questions (27%)
  • Boron and Its Compounds has produced the most tough questions (2).
6.Is p Block Elements (Group 13 & 14)'s weightage in AIIMS going up or down?

Across all 18 papers analysed, p Block Elements (Group 13 & 14) has averaged about 2.1 questions per paper. In the last three years (2017–2019), that average has fallen, at about 1.6 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.