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Chemistry - Classification of Elements and Periodicity in Properties

Practise 20 KCET previous year questions on Classification of Elements and Periodicity in Properties, compiled from papers spanning 2007 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty KCET tests.

Classification of Elements and Periodicity in Properties has been asked in 15 of the 20 years of KCET papers analysed (2007–2026), with 20 questions in all. 65% of them were easy, 35% moderate and 0% tough. Most of its questions came from 2008, with 3 questions that year. In the last three years (2024–2026) it had 4 questions across 3 papers, about 1.3 per paper.

The chapter's 3 topics are not weighted equally: Periodic properties (15 questions, 75%), Modern periodic table (4 questions, 20%), and Earlier attempts of periodic classification (1 question, 5%) have been asked the most. Periodic properties has also led over the last five years, with 2 questions.

  1. 1Match List-I with List-II: List-I (Element-Atomic number) List-II (Position in periodic table) (a) Ra – 88 (i) period, group (b) Ga – 31 (ii2026Modern periodic table
  2. 2Given below and the atomic masses of the elements: {array}{|l|l|l|l|l|l|l|l|l|l|} { Element: } & {Li} & {Na} & {Cl} & {~K} & {Ca} & {Br} & {2025Earlier attempts of periodic classification
  3. 3A metalloid is2024Modern periodic table
  4. 4A pair of isoelectronic species having bond order of one is2024Periodic properties
  5. 5The correct order of first ionisation enthalpy of given elements is2023Periodic properties
  6. 6The third ionisation enthalpy is highest in2021Periodic properties
  7. 7Silicon doped with gallium forms2020Periodic properties
  8. 8The first ionization enthalpy of the following elements are in the order:2019Periodic properties
  9. 9Which of the following is the correct order of radius?2018Periodic properties
  10. 10For the preparation of alkanes, aqueous solution of sodium or potassium salt of carboxylic acid is subjected to2017Periodic properties
  11. 11For one of the element various successive ionization enthalpies (in \( {kJ} {mol}^{-1} \) ) are given below The element is2015Periodic properties
  12. 12An aromatic compound ' \( {A} \) ' \( ( {C}_{7} {H}_{9} {~N} ) \) on reacting with \( {NaNO}_{2} / {HCl} \) at \( 0^{ } {C} \) forms benzyl 2014Periodic properties
  13. 13Volume occupied by single \( {CsCl} \) ion pair in a crystal is \( 7.014 10^{-23} {~cm}^{3} \). The smallest \( {Cs}- \) Cs inter-nuclear di2014Periodic properties
  14. 14The correct order of electronegativities of , and is2012Periodic properties
  15. 15The correct order of ionisation energy of and is2012Periodic properties
  16. 16The number of naturally occurring -block elements that are diamagnetic is2011Periodic properties
  17. 17Which of the following has the maximum number of unpaired ' ' electrons?2008Periodic properties
  18. 18An element with atomic number 21 is a2008Modern periodic table
  19. 19Malleability and ductility of metals can be accounted due to2008Modern periodic table
  20. 20Gram molecular volume of oxygen at STP is2007Periodic properties

Frequently Asked Questions

1.How many questions are available for Classification of Elements and Periodicity in Properties?

This chapter includes 20 questions compiled from KCET papers spanning 2007 to 2026.

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

These are KCET questions specifically for the Classification of Elements and Periodicity in Properties chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Classification of Elements and Periodicity in Properties an important chapter for KCET Chemistry?

Classification of Elements and Periodicity in Properties has appeared in 15 of the 20 years of KCET papers covered here, with 20 questions across 15 papers - about one per paper it appears in.

4.What is the difficulty level of Classification of Elements and Periodicity in Properties questions in KCET?

Of the 20 questions analysed for this chapter, 65% are easy, 35% moderate and 0% tough. 2008 had the most, with 3 questions.

5.Which topics in Classification of Elements and Periodicity in Properties should I focus on?

These topics have carried the most weightage in Classification of Elements and Periodicity in Properties:

  • Periodic properties - 15 questions (75%)
  • Modern periodic table - 4 questions (20%)
  • Earlier attempts of periodic classification - 1 question (5%)
6.Is Classification of Elements and Periodicity in Properties's weightage in KCET going up or down?

Across all 15 papers analysed, Classification of Elements and Periodicity in Properties has averaged about 1.3 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 1.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.