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Which of the following molecule doesn’t involve covalent bond?(a) H2O(b) CCl4(c) NaCl(d) O2I have been asked this question during an online exam.My enquiry is from Kossel-Lewis Approach to Chemical Bonding in section Chemical Bonding and Molecular Structure of Chemistry – Class 11

Answer»

Correct option is (c) NaCl

Explanation: The formation of NaCl MOLECULE where Na and Cl transfer electrons to each other forming Na^+ and Cl^–. There is no SHARING of electrons i.e. no COVALENT bond. Whereas the molecules H2O, Cl2 and O2 involve sharing of electrons.



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