JEE Main Chemistry question

Which of the following does not have a lone pair on the central atom?

(A)
(B)
(C)Correct
(D)

Answer: (C)

Solution

is an electron-deficient molecule — boron has only 3 valence electrons, all used in the three B–F bonds, leaving no lone pair and an empty orbital on boron (hence

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Question ID VK-155949