Hydrocarbon NEET PYQ with Answers

Solve Hydrocarbon NEET PYQ to boost your preparations for the exam. Check here the NEET Hydrocarbon previous years questions with answers PDF. Also, know the weightage of Hydrocarbon chapter in NEET 2026 exam, which is scheduled to be held on May 3, 2026.

NEET Hydrocarbon PYQ with Solutions

Hydrocarbon is an important chapter of NEET 2026 Chemistry. NEET Hydrocarbon chapter holds around 10 per cent weightage of Chemistry section. To prepare for this section, NEET previous years questions (PYQ) must be practiced. Practicing Hydrocarbon NEET PYQ helps students understand the high-value topics, difficulty level and overall weightage in the exam. With NEET 2026 exam scheduled on May 3, 2026, students should practice maximum number of questions to score good in the exam. The exam comprises 9 to 10 questions from this section alone. We have shared below the NEET Hydrocarbon questions with answers based on the previous years’ NEET question papers. Go through the PYQs and the weightage of the chapter below.

Hydrocarbon NEET Syllabus 2026

The NEET Hydrocarbon syllabus is listed under Organic Chemistry section. To understand the Hydrocarbon chapter, candidates need to prepare through the NEET 2026 syllabus. This chapter makes students understand the basics of Organic Chemistry, learn the reactions and know the uses of compounds. The complete syllabus must be covered before taking the NEET PYQ of Hydrocarbon chapter. Check the Hydrocarbon NEET syllabus below-

• Classification, isomerism, IUPAC nomenclature, general methods of preparation, properties, and reactions.
• Alkanes - Conformations: Sawhorse and Newman projections (of ethane): Mechanism of halogenation of alkanes.
• Alkenes - Geometrical isomerism: Mechanism of electrophilic addition: addition of hydrogen, halogens, water, hydrogen halides (Markownikoffs and peroxide effect): Ozonolysis and polymerization.
• Alkynes - Acidic character: Addition of hydrogen, halogens, water, and hydrogen halides: Polymerization.
• Aromatic hydrocarbons - Nomenclature, benzene - structure and aromaticity: Mechanism of electrophilic substitution: halogenation, nitration.
• Friedel - Craft's alkylation and acylation, directive influence of the functional group in monosubstituted benzene.

Hydrocarbon NEET Weightage

Students should know the weightage of questions asked from NEET Hydrocarbon chapter. Though the NTA does not share the weightage of NEET syllabus, however, the same can be known after analysis of Last 5 years NEET question paper PDFs. Check the weightage of Hydrocarbon chapter of NEET Chemistry below:

Hydrocarbon NEET PYQ with Answers

NEET PYQ on Hydrocarbon must be solved to have a good hold on this chapter. After finishing the complete NEET Hydrocarbon syllabus, candidates should practice Hydrocarbon NEET PYQ to check their preparations. Have a look at some questions asked in exam from NEET Chemistry Hydrocarbon chapter below.

Which compound can exist as cis-trans isomers?

1. 1, 1-Dimethycyclopropane 
2. 1, 2-Dimethylcyclohexane
3. Pent-1-ene
4. 2-Methylhex-2-ene

Answer- B

Baeyer's reagent is:

1. Acidic potassium permanganate solution
2. Acidic potassium dichromate solution
3. Cold, dilute, aqueous solution of potassium permanganate
4. Hot, concentrated solution of potassium permanganate

Answer- C

Which compound will show geometrical isomerism?

1. Pent-1-ene
2. 2,3-Dimethylbut-2-ene
3. 2-Methylprop-1-ene
4. 3,4-Dimethylhex-3-ene

Answer- D

The decreasing order of boiling points of the following alkanes is-

1. Heptane
2. Butane
3. 2-methylbutane
4. Methylpropane
5. Hexane

Choose the correct answer from the options given below:

1. (a) > (e) > (c) > (b) > (d)
2. (a) > (c) > (e) > (d) > (b)
3. (c) > (d) > (a) > (e) > (b)
4. (a) > (e) > (b) > (c) > (d)

Answer- A

The incorrect method for the synthesis of alkenes is-

1. Treating vicinal dihalides with Zn metal
2. Treating of alkynes with Na in liquid NH3
3. Heating alkyl halides with alcoholic KOH
4. Treating alkyl halides in aqueous KOH solution

Answer- D

With respect to the conformers of ethane, which of the following statements is true?

1. Bond angle changes but bond length remains same.
2. Both bond angle and bond length change.
3. Both bond angle and bond length remain same.
4. Bond angle remains same but bond length changes.

Answer- C

Consider the nitration of benzene using mixed conc. H2SO4 and HNO3 . If a larger amount of KHSO4 is added to the mixture the rate of nitration will be-

1. Doubled
2. Faster
3. Slower
4. Unchanged

Answer- C

Which can be used as the halide component for Friedel-Crafts reaction?

1. Chlorobenzene
2. Bromobenzene
3. Chloroethene
4. Isopropyl chloride

Answer- D

The compound that will react most readily with gaseous bromine has the formula-

1. C3H6
2. C2H2
3. C4H10
4. C2H4

Answer- A

Which organic compound has same hybridization as its combustion product (CO2)?

1. Ethene
2. Ethanol
3. Ethane
4. Ethyne

Answer- D

Other NEET Chapter-Wise PYQ: