Given below are two statements: Statement I : The boiling point of three isomeric pentanes follows the order n-pentane > isopentane > neopentane Statement II : When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point. In the light of the above statements, choose the most appropriate answer from the options given below:

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Given below are two statements: Statement I : In an organic compound, when inductive and electromeric effects operate in opposite directions, the inductive effect predominates. Statement II : Hyperconjugation is observed in o-xylene. In the light of the above statements, choose the correct answer from the options given below :

Statement-I is false but Statement-II is true.

Statement-I is true but Statement-II is false.

Both Statement-I and Statement-II are true.

Both Statement-I and Statement-II are false.

Some Basic Concepts Of Organic Chemistry — NEET Previous Year Questions

46 solved PYQs · 2016–2026 · Chemistry

Solved PYQs: 46
Years covered: 2016–2026
Avg / year: ~4
Subject: Chemistry

How many NEET questions come from Some Basic Concepts Of Organic Chemistry?

Some Basic Concepts Of Organic Chemistry has contributed 46 questions to National Eligibility cum Entrance Test (UG) papers between 2016 and 2026 — an average of about 4 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 46 questions carries a written, step-by-step solution, and each is tagged to Some Basic Concepts Of Organic Chemistry 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 Some Basic Concepts Of Organic Chemistry questions from real NEET papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 46 Some Basic Concepts Of Organic Chemistry questions (with full written solutions) are available in practice.

Question 1 · NEET 2026
During Lassaigne's test, the elements present in an organic compound are converted from :
1. (A) $Ionic form to ionic form$
2. (B) $Covalent form to ionic form$
3. (C) $Covalent form to covalent form$
4. (D) $Ionic form to covalent form$
Show answerAnswer
$Answer: (B) Covalent form to ionic form$
Question 2 · NEET 2024
On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as
1. (A) $Crystallization$
2. (B) $Sublimation$
3. (C) $Distillation$
4. (D) $Chromatography$
Show answerAnswer
$Answer: (B) Sublimation$
Question 3 · NEET 2024
Given below are two statements:

Statement I : The boiling point of three isomeric pentanes follows the order

n-pentane > isopentane > neopentane

Statement II : When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point.

In the light of the above statements, choose the most appropriate answer from the options given below:
1. (A) $Both Statement I and Statement II are correct$
2. (B) $Both Statement I and Statement II are incorrect$
3. (C) $Statement I is correct but Statement II is incorrect$
4. (D) $Statement I is incorrect but Statement II is correct$
Show answerAnswer
$Answer: (A) Both Statement I and Statement II are correct$
Question 4 · NEET 2023
Given below are two statements:

Statement I : In an organic compound, when inductive and electromeric effects operate in opposite directions, the inductive effect predominates.

Statement II : Hyperconjugation is observed in o-xylene.

In the light of the above statements, choose the correct answer from the options given below :
1. (A) $Statement-I is true but Statement-II is false.$
2. (B) $Statement-I is false but Statement-II is true.$
3. (C) $Both Statement-I and Statement-II are true.$
4. (D) $Both Statement-I and Statement-II are false.$
Show answerAnswer
$Answer: (B) Statement-I is false but Statement-II is true.$
Question 5 · NEET 2017
The most suitable method of separation of 1 : 1 mixture of ortho and para-nitrophenols is
1. (A) $chromatography$
2. (B) $crystallisation$
3. (C) $steam distillation$
4. (D) $sublimation$
Show answerAnswer
$Answer: (C) steam distillation$

Some Basic Concepts Of Organic Chemistry questions by year

Year	Questions	Share of chapter questions
2026	2
2025	6
2024	9
2023	8
2022	8
2021	2
2020	2
2019	1
2018	3
2017	3
2016	2

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FAQs

How many NEET questions have been asked from Some Basic Concepts Of Organic Chemistry?

EByAi's bank holds 46 real NEET questions from Some Basic Concepts Of Organic Chemistry, asked between 2016 and 2026 — about 4 per year on average. Every count is measured from actual papers, not estimated.

Is Some Basic Concepts Of Organic Chemistry important for NEET?

46 questions over 11 papers make Some Basic Concepts Of Organic Chemistry a steady-weightage chapter in NEET Chemistry. The year-wise table above shows exactly how often it appears.

Can I solve Some Basic Concepts Of Organic Chemistry 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.

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