JEE Main 2023 Chemistry question
The number of molecules from the following which contain only two lone pair of electrons is , , CO, , , NO, ,
Answer: 4
Solution
TOPIC NOT IN SYLLABUS: the source's own count of molecules with exactly two lone pairs ON THE CENTRAL ATOM gives 3 (H2O, N2, CO); XeF4 has 2 lone pairs on its central atom but 14 lone pairs when counting
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