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

Both bond angle and bond length remain same.

Bond angle changes but bond length remains same.

Both bond angle and bond length change.

Bond angle remains same but bond length changes.

Hydrocarbons — NEET Previous Year Questions

29 solved PYQs · 2016–2026 · Chemistry

Solved PYQs: 29
Years covered: 2016–2026
Avg / year: ~3
Subject: Chemistry

How many NEET questions come from Hydrocarbons?

Hydrocarbons has contributed 29 questions to National Eligibility cum Entrance Test (UG) papers between 2016 and 2026 — an average of about 3 questions a year. That count is measured from EByAi’s bank of 46,150 NEET questions, not estimated from a syllabus. Every one of the 29 questions carries a written, step-by-step solution, and each is tagged to Hydrocarbons within Chemistry, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Hydrocarbons questions from real NEET papers

These are 4 real questions from the bank — exactly as asked, with the answer one tap away. All 29 Hydrocarbons questions (with full written solutions) are available in practice.

Question 1 · NEET 2022
The decreasing order of boiling points of the following alkanes is :

(a) heptane

(b) butane

(c) 2-methylbutane

(d) 2-methylpropane

(e) hexane

Choose the correct answer from the options given below :
1. (A) $(a) > (e) > (c) > (b) > (d)$
2. (B) $(a) > (c) > (e) > (d) > (b)$
3. (C) $(c) > (d) > (a) > (e) > (b)$
4. (D) $(a) > (e) > (b) > (c) > (d)$
Show answerAnswer
$Answer: (A) (a) > (e) > (c) > (b) > (d)$
Question 2 · NEET 2017
With respect to the conformers of ethane, which of the following statements is true?
1. (A) $Bond angle changes but bond length remains same.$
2. (B) $Both bond angle and bond length change.$
3. (C) $Both bond angle and bond length remain same.$
4. (D) $Bond angle remains same but bond length changes.$
Show answerAnswer
$Answer: (C) Both bond angle and bond length remain same.$
Question 3 · NEET 2016
The compound that will react most readily with gaseous bromine has the formula
1. (A) $C3H6$
2. (B) $C2H2$
3. (C) $C4H10$
4. (D) $C2H4$
Show answerAnswer
$Answer: (A) C3H6$
Question 4 · NEET 2016
Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be
1. (A) $unchanged$
2. (B) $doubled$
3. (C) $faster$
4. (D) $slower$
Show answerAnswer
$Answer: (D) slower$

Hydrocarbons questions by year

Year	Questions	Share of chapter questions
2026	1
2025	3
2024	2
2023	1
2022	3
2021	1
2020	1
2019	3
2018	1
2017	3
2016	10

Practise these 29 questions with solutions

Free to start — 25 past-year questions a day with full written solutions, no card needed.

Start Hydrocarbons practice free

FAQs

How many NEET questions have been asked from Hydrocarbons?

EByAi's bank holds 29 real NEET questions from Hydrocarbons, asked between 2016 and 2026 — about 3 per year on average. Every count is measured from actual papers, not estimated.

Is Hydrocarbons important for NEET?

29 questions over 11 papers make Hydrocarbons a steady-weightage chapter in NEET Chemistry. The year-wise table above shows exactly how often it appears.

Can I solve Hydrocarbons PYQs online for free?

Yes. EByAi lets you solve NEET past-year questions in the browser with written solutions — free daily practice, no card needed.

More NEET Chemistry chapters

All NEET Chemistry chapters →NEET overview →