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Chemistry - s Block Elements

Practise 30 AIIMS previous year questions on s 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.

s Block Elements has been asked in 16 of the 19 years of AIIMS papers analysed (2001–2019), with 30 questions in all. 73% of them were easy, 23% moderate and 3% tough. Most of its questions came from 2009, with 4 questions that year. In the last three years (2017–2019) it had 5 questions across 5 papers, about 1 per paper.

The chapter's 5 topics are not weighted equally: General Characteristics of Alkali Metals (10 questions, 33%), Alkaline Earth Metals (9 questions, 30%), and Properties of S-block elements (5 questions, 17%) have been asked the most. Alkaline Earth Metals has produced the most tough questions (1).

  1. 1Which alkali metal during flame test will show colour corresponding to maximum wavelength?26 May, 2019General Characteristics of Alkali Metals
  2. 2Which of the following statements is false for alkali metals?26 May, 2019Compounds of Alkali Metals
  3. 3Which of the following are formula of methanides? (1) (2) (3) (4)25 May, 2019Properties of S-block elements
  4. 4The correct order of solubility of the following compounds in water is2017Alkaline Earth Metals
  5. 5Assertion : The carbonate of lithium decomposes easily on heating to form lithium oxide and . Reason: Lithium being very small in size polar2017Properties of S-block elements
  6. 6Assertion : Generally alkali and alkaline earth metals form superoxides. Reason : There is a single bond between and in superoxides.2016General Characteristics of Alkali Metals
  7. 7Which of the following has highest hydration energy?2015Alkaline Earth Metals
  8. 8Assertion: is soluble in water while is not. Reason : Hydration energy decreases down the group from to and lattice energy remains almost co2015Alkaline Earth Metals
  9. 9Which of the following statements is incorrect?2014General Characteristics of Alkali Metals
  10. 10Bleaching powder does not contain2013Compounds of Alkaline Earth Metals
  11. 11Which is correct order of solubility in water?2012General Characteristics of Alkali Metals
  12. 12Which of the following is not hygroscopic?2011General Characteristics of Alkali Metals
  13. 13Beryllium and aluminium exhibit many properties which are similar. But the two elements differ in2010Properties of S-block elements
  14. 14Which of the following acids will not evolve gas on reaction with alkali metals?2010General Characteristics of Alkali Metals
  15. 15Assertion : Magnesium is extracted by the electrolysis of fused mixture of and . Reason : Calcium chloride acts as a reducing agent.2010Compounds of Alkali Metals
  16. 16The correct order of stability of the superoxides is2009General Characteristics of Alkali Metals
  17. 17Which of the following fluorides has the lowest melting point?2009Alkaline Earth Metals
  18. 18Which of the following has the highest tendency to give the reaction,2009General Characteristics of Alkali Metals
  19. 19Assertion : In fused state, calcium chloride cannot be used to dry alcohol or . Reason : is not a good dessicant.2009Compounds of Alkaline Earth Metals
  20. 20Largest difference in radii is found in case of the pair2007General Characteristics of Alkali Metals
  21. 21The pair of amphoteric hydroxides is2005Properties of S-block elements
  22. 22Which of the following is only acidic in nature?2004Compounds of Alkaline Earth Metals
  23. 23Assertion : is not present in enamel of human teeth. Reason : Mg is an essential element for biological functions of human.2004Alkaline Earth Metals
  24. 24On dissolving moderate amount of sodium metal in liquid at low temperature, which one of the following does not occur?2003General Characteristics of Alkali Metals
  25. 25Assertion : Barium is not required for normal biological function in human. Reason : Barium does not show variable oxidation state.2003Alkaline Earth Metals
  26. 26Assertion : Potassium and caesium are used in photoelectric cells. Reason : Potassium and caesium emit electrons on exposure to light.2002Properties of S-block elements
  27. 27Which of the following has highest hydration energy?2001Alkaline Earth Metals
  28. 28Which of the following is soluble in water?2001Alkaline Earth Metals
  29. 29Which azide is explosive?2001Alkaline Earth Metals
  30. 30The composition of carnalite is2001Compounds of Alkaline Earth Metals

Frequently Asked Questions

1.How many questions are available for s Block Elements?

This chapter includes 30 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 s Block Elements chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

3.Is s Block Elements an important chapter for AIIMS Chemistry?

s Block Elements has appeared in 16 of the 19 years of AIIMS papers covered here, with 30 questions across 17 papers - about 2 per paper it appears in.

4.What is the difficulty level of s Block Elements questions in AIIMS?

Of the 30 questions analysed for this chapter, 73% are easy, 23% moderate and 3% tough. 2009 had the most, with 4 questions.

5.Which topics in s Block Elements should I focus on?

These topics have carried the most weightage in s Block Elements:

  • General Characteristics of Alkali Metals - 10 questions (33%)
  • Alkaline Earth Metals - 9 questions (30%)
  • Properties of S-block elements - 5 questions (17%)
  • Alkaline Earth Metals has produced the most tough questions (1).
6.Is s Block Elements's weightage in AIIMS going up or down?

Across all 17 papers analysed, s Block Elements has averaged about 1.8 questions per paper. In the last three years (2017–2019), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.