Match List I with List II. List I (Molecule); List II (Number and types of bond/s between two carbon atoms) A. ethane; I. one σ-bond and two π-bonds B. ethene; II. two π-bonds C. carbon molecule, C2; III. one σ-bond D. ethyne; IV. one σ-bond and one π-bond Choose the correct answer from the options given below:

NEET UG 2024 · Chemistry · Question 54

NEET 2024 Chemistry, question 54

Question 54 of the NEET 2024 paper (code T2) is a Chemistry question from Chemical Bonding and Molecular Structure. Its idea, Counting Sigma and Pi Bonds, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.

Updated 2026-10-08

Q54 · Chemistry

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List I (Molecule)	List II (Number and types of bond/s between two carbon atoms)
A. ethane	I. one $\sigma$ -bond and two $\pi$ -bonds
B. ethene	II. two $\pi$ -bonds
C. carbon molecule, C $_2$	III. one $\sigma$ -bond
D. ethyne	IV. one $\sigma$ -bond and one $\pi$ -bond

1 A-III, B-IV, C-II, D-I Official answer 2 A-III, B-IV, C-I, D-II 3 A-I, B-IV, C-II, D-III 4 A-IV, B-III, C-II, D-I

Official answer: option 1 · NTA final answer key

Same idea

The only question on Counting Sigma and Pi Bonds

No other NEET paper from 2017–2026 tested this exact idea.

Counting Sigma and Pi Bonds: every question and how it was framed

The chapter

Chemical Bonding and Molecular Structure in ten years of NEET

24 questions from 2017–2026, asked in 10 of 10 papers, about 2.3 a paper. Hybridization alone had 2.

Chapter analysis Study this chapter Practise this chapter

The only question on Counting Sigma and Pi Bonds

Chemical Bonding and Molecular Structure in ten years of NEET

Chemical Bonding and Molecular Structure: questions per paper