NEET 2025 Chemistry question
Match List I with List II. List-I: (Molecule) (A) ethane (B) ethene (C) carbon molecule, (D) ethyne List-II: (Number and types of bond/s between two carbon atoms) (I) one -bond and two -bonds (II) two -bonds (III) one -bond (IV) one -bond and one -bond Choose the correct answer from the options given below:
Answer: (D)
Solution
Ethane: 1σ; ethene: 1σ+1π; : two π bonds (MO theory); ethyne: 1σ+2π.