Chemistry - Haloalkanes and Haloarenes
Practise 21 NEST (NISER) previous year questions on Haloalkanes and Haloarenes, compiled from papers spanning 2011 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.
Haloalkanes and Haloarenes has been asked in 11 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 21 questions in all. 0% of them were easy, 86% moderate and 14% tough. Most of its questions came from 2019, with 5 questions that year. In the last three years (2024–2026) it had 1 question across 4 papers, about 0.3 per paper.
The chapter's 4 topics are not weighted equally: Preparation and Properties of Monohalides (14 questions, 67%), Grignard Reagent (4 questions, 19%), and Preparation and Properties of Aryl Halides (2 questions, 10%) have been asked the most. Preparation and Properties of Monohalides has also led over the last five years, with 4 questions. Preparation and Properties of Monohalides has produced the most tough questions (2).
- 1Cyclohexene on reaction with 1 equivalent of in the presence of light gives (major product), which on reaction with 1 equivalent of NaI in d2024 (Session 2)Preparation and Properties of Monohalides
- 2In the reaction shown below, the product is2023 (Session 1)Preparation and Properties of Monohalides
- 3In the reaction shown below, the major hydrocarbon product is2023 (Session 1)Grignard Reagent
- 4In the reaction shown below, the major product is2023 (Session 2)Preparation and Properties of Monohalides
- 5The compound , shown below, does not react with aq. NaOH at . The reason is that2022 (Session 1)Preparation and Properties of Monohalides
- 6Consider the reaction sequences starting from compound , shown below, and products formed therein, The correct statement(s) is/are2022 (Session 2)Preparation and Properties of Aryl Halides
- 7One mole of -2-bromobutane is hydrolysed in an alkaline medium to form butane-2ol. The rate of formation of -butane-2-ol is assumed to be tw2021 (Session 1)Preparation and Properties of Monohalides
- 8An alkyl halide with -hydrogen atom, when treated with a nucleophile/base, undergoes a substitution reaction or an elimination reaction, dep2020 (Session 1)Preparation and Properties of Monohalides
- 9The product in the above reaction sequence is2020 (Session 2)Preparation and Properties of Geminal and Vicinal Dihalides
- 10In an reaction, the group that leaves the substrate is called a leaving group. The ease of departure of leaving group is determined on the b2019 (Session 1)Preparation and Properties of Monohalides
- 11The major substitution product of the following reaction is2019 (Session 1)Preparation and Properties of Aryl Halides
- 12Organometallic compounds are those compounds which contain a carbon-metal (CM) bond. They react as nucleophilic reagents, where the carbon b2019 (Session 1)Grignard Reagent
- 13The major product or the mixture of products of the following reaction is2019 (Session 2)Preparation and Properties of Monohalides
- 14Treatment of 2-bromo-2-methylbutane with sodium ethoxide in ethanol at gives a mixture of two products and through one step processes. The e2019 (Session 2)Preparation and Properties of Monohalides
- 15In a base catalyzed elimination reaction the base takes away a proton from the position of the leaving group (the group that goes away with 2016Preparation and Properties of Monohalides
- 16Consider the following reaction. The major product of the reaction is2016Preparation and Properties of Monohalides
- 17Consider the following reaction scheme The compounds , and Z are2014Grignard Reagent
- 18The addition of hydrogen bromide to an unsymmetrical alkene in the presence of a peroxide does not follow Markovnikov rule. The mechanism is2013Preparation and Properties of Monohalides
- 19Consider the four compounds (a) - (d) Each of them is subjected to the treatment of the following sequence of reagents: (i) Mg , ether (ii) 2012Grignard Reagent
- 20The energy profiles for the two possible mechanisms of the following reaction, are given below Consider the following substrates (I to IV) f2012Preparation and Properties of Monohalides
- 21The compound which would react fastest with ammonia is2011Preparation and Properties of Monohalides
Frequently Asked Questions
1.How many questions are available for Haloalkanes and Haloarenes?
This chapter includes 21 questions compiled from NEST (NISER) papers spanning 2011 to 2024.
2.Are these questions only from NEST (NISER), or from other exams too?
These are NEST (NISER) questions specifically for the Haloalkanes and Haloarenes chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Haloalkanes and Haloarenes an important chapter for NEST (NISER) Chemistry?
Haloalkanes and Haloarenes has appeared in 11 of the 16 years of NEST (NISER) papers covered here, with 21 questions across 15 papers - about one per paper it appears in.
4.What is the difficulty level of Haloalkanes and Haloarenes questions in NEST (NISER)?
Of the 21 questions analysed for this chapter, 0% are easy, 86% moderate and 14% tough. 2019 had the most, with 5 questions.
5.Which topics in Haloalkanes and Haloarenes should I focus on?
These topics have carried the most weightage in Haloalkanes and Haloarenes:
- Preparation and Properties of Monohalides - 14 questions (67%)
- Grignard Reagent - 4 questions (19%)
- Preparation and Properties of Aryl Halides - 2 questions (10%)
- Preparation and Properties of Monohalides has produced the most tough questions (2).
6.Is Haloalkanes and Haloarenes's weightage in NEST (NISER) going up or down?
Across all 15 papers analysed, Haloalkanes and Haloarenes has averaged about 1.4 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.