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JEE Main 2026 Chemistry question

ChemistryChemical Bonding and Molecular StructureJEE Main 2026

The correct increasing order of C – H(A), C – O(B), C = O(C) and C ≡ N(D) bonds in terms of covalent bond length is:

Answer: (2)

Solution

Bond lengths: C-H(107pm) < C≡N(116pm) < C=O(121pm) < C-O(143pm), giving order A < D < C < B.

Question ID VK-001059