Chemistry - s Block Elements
Practise 9 NEST (NISER) previous year questions on s Block Elements, compiled from papers spanning 2015 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEST (NISER) tests.
s Block Elements has been asked in 6 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 9 questions in all. 22% of them were easy, 78% moderate and 0% tough. Most of its questions came from 2024, with 2 questions that year. In the last three years (2024–2026) it had 2 questions across 4 papers, about 0.5 per paper.
The chapter's 2 topics are not weighted equally: General Characteristics of Alkali Metals (6 questions, 67%) and Alkaline Earth Metals (3 questions, 33%) have been asked the most. General Characteristics of Alkali Metals has also led over the last five years, with 2 questions.
- 1The correct order of basicity is2024 (Session 1)Alkaline Earth Metals
- 2The correct order of reactivity of the metals , and Ce with water is2024 (Session 2)General Characteristics of Alkali Metals
- 3The reaction of the alkali metals with oxygen results in the formation of different alkali metal oxides, monoxides, peroxides and superoxide2023 (Session 1)General Characteristics of Alkali Metals
- 4The correct statement regarding the halides and monoxides of the alkaline earth metals is:2023 (Session 2)Alkaline Earth Metals
- 5Metal ' X ' reacts with dilute sulphuric acid to liberate gas ' Y '. It also reacts with aq. NaOH to give ' Y '. Metal ' X ' is2021 (Session 2)General Characteristics of Alkali Metals
- 6Alkali metals are highly reactive towards air and water and are generally kept in kerosene oil. Glove box is a sealed container filled with 2020 (Session 1)General Characteristics of Alkali Metals
- 7The set of metal halides in which all the members form hydrates is:2020 (Session 2)General Characteristics of Alkali Metals
- 8An alkaline earth metal (M) dissolves in liquid ammonia forming a deep blue-black solution. The reaction involved is2017Alkaline Earth Metals
- 9The reactivity of the metals and Na follows the order2015General Characteristics of Alkali Metals
Frequently Asked Questions
1.How many questions are available for s Block Elements?
This chapter includes 9 questions compiled from NEST (NISER) papers spanning 2015 to 2024.
2.Are these questions only from NEST (NISER), or from other exams too?
These are NEST (NISER) questions specifically for the s Block Elements chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is s Block Elements an important chapter for NEST (NISER) Chemistry?
s Block Elements has appeared in 6 of the 16 years of NEST (NISER) papers covered here, with 9 questions across 9 papers - about one per paper it appears in.
4.What is the difficulty level of s Block Elements questions in NEST (NISER)?
Of the 9 questions analysed for this chapter, 22% are easy, 78% moderate and 0% tough. 2024 had the most, with 2 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 - 6 questions (67%)
- Alkaline Earth Metals - 3 questions (33%)
6.Is s Block Elements's weightage in NEST (NISER) going up or down?
Across all 9 papers analysed, s Block Elements has averaged about 1.0 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.5 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.